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Rouskas K, Katsareli EA, Amerikanou C, Dimopoulos AC, Glentis S, Kalantzi A, Skoulakis A, Panousis N, Ongen H, Bielser D, Planchon A, Romano L, Harokopos V, Reczko M, Moulos P, Griniatsos I, Diamantis T, Dermitzakis ET, Ragoussis J, Dedoussis G, Dimas AS. Identifying novel regulatory effects for clinically relevant genes through the study of the Greek population. BMC Genomics 2023; 24:442. [PMID: 37543566 PMCID: PMC10403965 DOI: 10.1186/s12864-023-09532-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 07/25/2023] [Indexed: 08/07/2023] Open
Abstract
BACKGROUND Expression quantitative trait loci (eQTL) studies provide insights into regulatory mechanisms underlying disease risk. Expanding studies of gene regulation to underexplored populations and to medically relevant tissues offers potential to reveal yet unknown regulatory variants and to better understand disease mechanisms. Here, we performed eQTL mapping in subcutaneous (S) and visceral (V) adipose tissue from 106 Greek individuals (Greek Metabolic study, GM) and compared our findings to those from the Genotype-Tissue Expression (GTEx) resource. RESULTS We identified 1,930 and 1,515 eGenes in S and V respectively, over 13% of which are not observed in GTEx adipose tissue, and that do not arise due to different ancestry. We report additional context-specific regulatory effects in genes of clinical interest (e.g. oncogene ST7) and in genes regulating responses to environmental stimuli (e.g. MIR21, SNX33). We suggest that a fraction of the reported differences across populations is due to environmental effects on gene expression, driving context-specific eQTLs, and suggest that environmental effects can determine the penetrance of disease variants thus shaping disease risk. We report that over half of GM eQTLs colocalize with GWAS SNPs and of these colocalizations 41% are not detected in GTEx. We also highlight the clinical relevance of S adipose tissue by revealing that inflammatory processes are upregulated in individuals with obesity, not only in V, but also in S tissue. CONCLUSIONS By focusing on an understudied population, our results provide further candidate genes for investigation regarding their role in adipose tissue biology and their contribution to disease risk and pathogenesis.
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Affiliation(s)
- Konstantinos Rouskas
- Institute for Bioinnovation, Biomedical Sciences Research Center 'Alexander Fleming', Vari, Greece
- Institute of Applied Biosciences, Centre for Research & Technology Hellas, Thessaloniki, Greece
| | - Efthymia A Katsareli
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Athens, Greece
| | - Charalampia Amerikanou
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Athens, Greece
| | - Alexandros C Dimopoulos
- Institute for Fundamental Biomedical Science, Biomedical Sciences Research Center 'Alexander Fleming', Vari, Greece
- Hellenic Naval Academy, Hatzikyriakou Avenue, Pireaus, Greece
| | - Stavros Glentis
- Institute for Bioinnovation, Biomedical Sciences Research Center 'Alexander Fleming', Vari, Greece
- Pediatric Hematology/Oncology Unit (POHemU), First Department of Pediatrics, University of Athens, Aghia Sophia Children's Hospital, Athens, Greece
| | - Alexandra Kalantzi
- Institute for Bioinnovation, Biomedical Sciences Research Center 'Alexander Fleming', Vari, Greece
| | - Anargyros Skoulakis
- Institute for Bioinnovation, Biomedical Sciences Research Center 'Alexander Fleming', Vari, Greece
| | | | - Halit Ongen
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
- Swiss Institute of Bioinformatics, University of Geneva, Geneva, Switzerland
- Institute of Genetics and Genomics in Geneva, University of Geneva, Geneva, Switzerland
| | - Deborah Bielser
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
| | - Alexandra Planchon
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
| | - Luciana Romano
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
| | - Vaggelis Harokopos
- Institute for Bioinnovation, Biomedical Sciences Research Center 'Alexander Fleming', Vari, Greece
| | - Martin Reczko
- Institute for Fundamental Biomedical Science, Biomedical Sciences Research Center 'Alexander Fleming', Vari, Greece
| | - Panagiotis Moulos
- Institute for Fundamental Biomedical Science, Biomedical Sciences Research Center 'Alexander Fleming', Vari, Greece
- Center of New Biotechnologies & Precision Medicine, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Ioannis Griniatsos
- First Department of Surgery, National and Kapodistrian University of Athens, Medical School, Laiko Hospital, Athens, Greece
| | - Theodoros Diamantis
- First Department of Surgery, National and Kapodistrian University of Athens, Medical School, Laiko Hospital, Athens, Greece
| | - Emmanouil T Dermitzakis
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
| | - Jiannis Ragoussis
- Department of Human Genetics, McGill University Genome Centre, McGill University, Montréal, QC, Canada
- Department of Bioengineering, McGill University, Montréal, QC, Canada
| | - George Dedoussis
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Athens, Greece
| | - Antigone S Dimas
- Institute for Bioinnovation, Biomedical Sciences Research Center 'Alexander Fleming', Vari, Greece.
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Festa J, AlZaim I, Kalucka J. Adipose tissue endothelial cells: insights into their heterogeneity and functional diversity. Curr Opin Genet Dev 2023; 81:102055. [PMID: 37279621 DOI: 10.1016/j.gde.2023.102055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 04/04/2023] [Accepted: 04/28/2023] [Indexed: 06/08/2023]
Abstract
Cardiovascular disease is the leading cause of death globally. Endothelial cells (ECs), the key units of all vascular segments, have a significant impact on the health and disease of organisms. Adipose tissue is vital to cardiovascular health, therefore, understanding adipose EC (AdEC) biology is important. Recent data have highlighted the presence of distinct AdEC subpopulations that govern adipose tissue homeostasis. In addition to their role in nutrient metabolism and transport, AdECs are involved in bidirectional cellular communication with adipocytes, among other cells. These interactions are mainly mediated by paracrine factors, including noncoding RNAs. In this review, we highlight recent results showcasing the functions of AdECs in adipose tissue biology, metabolic homeostasis, and changes occurring in obesity.
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Affiliation(s)
- Joseph Festa
- Department of Biomedicine, Aarhus University, Høegh-Guldbergsgade 10, 8000 Aarhus C, Denmark. https://twitter.com/@Festa_Science
| | - Ibrahim AlZaim
- Department of Biomedicine, Aarhus University, Høegh-Guldbergsgade 10, 8000 Aarhus C, Denmark; Steno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus, Denmark. https://twitter.com/@IbrahimAlZaim2
| | - Joanna Kalucka
- Department of Biomedicine, Aarhus University, Høegh-Guldbergsgade 10, 8000 Aarhus C, Denmark; Steno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus, Denmark.
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53
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Dewal RS, Wolfrum C. Master of disguise: deconvoluting adipose tissue heterogeneity and its impact on metabolic health. Curr Opin Genet Dev 2023; 81:102085. [PMID: 37421902 DOI: 10.1016/j.gde.2023.102085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 05/24/2023] [Accepted: 06/13/2023] [Indexed: 07/10/2023]
Abstract
Adipose tissue in its different forms: white, brown, and beige, while essential in day-to-day bodily functions, leads to several disorders when present in overabundance, including obesity and type-2 diabetes. Adipose tissue function/dysfunction is largely mediated by the diversity of its cell composition, within adipocytes and cells in its stromal fraction. Owing to its heterogeneous nature, recent studies have focused on intercalating the effects of cellular diversity with adipose tissue function, particularly by employing sequencing technologies. In this review, we highlight the recent advances in utilizing single-cell and single-nuclei RNA sequencing technologies to discover novel adipose tissue cell types or subtypes, and to determine their role in mediating tissue, as well as whole-body metabolism and function.
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Affiliation(s)
- Revati S Dewal
- Laboratory of Translational Nutritional Biology, Department of Health Sciences and Technology, ETH Zurich, Schorenstrasse 16, 8603 Schwerzenbach, Switzerland. https://twitter.com/@revadewa3
| | - Christian Wolfrum
- Laboratory of Translational Nutritional Biology, Department of Health Sciences and Technology, ETH Zurich, Schorenstrasse 16, 8603 Schwerzenbach, Switzerland.
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54
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Liu SQ, Chen DY, Li B, Gao ZJ, Feng HF, Yu X, Liu Z, Wang Y, Li WG, Sun S, Sun SR, Wu Q. Single-cell analysis of white adipose tissue reveals the tumor-promoting adipocyte subtypes. J Transl Med 2023; 21:470. [PMID: 37454080 PMCID: PMC10349475 DOI: 10.1186/s12967-023-04256-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 06/09/2023] [Indexed: 07/18/2023] Open
Abstract
BACKGROUND The tumor-adipose microenvironment (TAME) is characterized by the enrichment of adipocytes, and is considered a special ecosystem that supports cancer progression. However, the heterogeneity and diversity of adipocytes in TAME remains poorly understood. METHODS We conducted a single-cell RNA sequencing analysis of adipocytes in mouse and human white adipose tissue (WAT). We analyzed several adipocyte subtypes to evaluate their relationship and potential as prognostic factors for overall survival (OS). The potential drugs are screened by using bioinformatics methods. The tumor-promoting effects of a typical adipocyte subtype in breast cancer are validated by performing in vitro functional assays and immunohistochemistry (IHC) in clinical samples. RESULTS We profiled a comprehensive single-cell atlas of adipocyte in mouse and human WAT and described their characteristics, origins, development, functions and interactions with immune cells. Several cancer-associated adipocyte subtypes, namely DPP4+ adipocytes in visceral adipose and ADIPOQ+ adipocytes in subcutaneous adipose, are identified. We found that high levels of these subtypes are associated with unfavorable outcomes in four typical adipose-associated cancers. Some potential drugs including Trametinib, Selumetinib and Ulixertinib are discovered. Emphatically, knockdown of adiponectin receptor 1 (AdipoR1) and AdipoR2 impaired the proliferation and invasion of breast cancer cells. Patients with AdipoR2-high breast cancer display significantly shorter relapse-free survival (RFS) than those with AdipoR2-low breast cancer. CONCLUSION Our results provide a novel understanding of TAME at the single-cell level. Based on our findings, several adipocyte subtypes have negative impact on prognosis. These cancer-associated adipocytes may serve as key prognostic predictor and potential targets for treatment in the future.
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Affiliation(s)
- Si-Qing Liu
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China
| | - Ding-Yuan Chen
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China
| | - Bei Li
- Department of Pathology, Renmin Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China
| | - Zhi-Jie Gao
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China
| | - Hong-Fang Feng
- Department of Breast and Thyroid Surgery, Huangshi Central Hospital, Hubei Polytechnic University, Huangshi, Hubei, People's Republic of China
| | - Xin Yu
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China
| | - Zhou Liu
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China
| | - Yuan Wang
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China
| | - Wen-Ge Li
- Department of Oncology, Shanghai Artemed Hospital, Shanghai, People's Republic of China
| | - Si Sun
- Department of Clinical Laboratory, Renmin Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China.
| | - Sheng-Rong Sun
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China.
| | - Qi Wu
- Tongji University Cancer Center, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China.
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Passos GR, de Oliveira MG, Ghezzi AC, Mello GC, Levi D’Ancona CA, Teixeira SA, Muscará MN, Grespan Bottoli CB, Vilela de Melo L, de Oliveira E, Antunes E, Mónica FZ. Periprostatic adipose tissue (PPAT) supernatant from obese mice releases anticontractile substances and increases human prostate epithelial cell proliferation: the role of nitric oxide and adenosine. Front Pharmacol 2023; 14:1145860. [PMID: 37492091 PMCID: PMC10364323 DOI: 10.3389/fphar.2023.1145860] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 06/12/2023] [Indexed: 07/27/2023] Open
Abstract
Background: The prostate gland is surrounded by periprostatic adipose tissue (PPAT) that can release mediators that interfere in prostate function. In this study, we examined the effect of periprostatic adipose tissue supernatant obtained from obese mice on prostate reactivity in vitro and on the viability of human prostatic epithelial cell lines. Methods: Male C57BL/6 mice were fed a standard or high-fat diet after which PPAT was isolated, incubated in Krebs-Henseleit solution for 30 min (without prostate) or 60 min (with prostate), and the supernatant was then collected and screened for biological activity. Total nitrate and nitrite (NOx-) and adenosine were quantified, and the supernatant was then collected and screened for biological activity. NOx- and adenosine were quantified. Concentration-response curves to phenylephrine (PE) were obtained in prostatic tissue from lean and obese mice incubated with or without periprostatic adipose tissue. In some experiments, periprostatic adipose tissue was co-incubated with inhibitors of the nitric oxide (NO)-cyclic guanosine monophosphate pathway (L-NAME, 1400W, ODQ), adenylate cyclase (SQ22536) or with adenosine A2A (ZM241385), and A2B (MRS1754) receptor antagonists. PNT1-A (normal) and BPH-1 (hyperplasic) human epithelial cells were cultured and incubated with supernatant from periprostatic adipose tissue for 24, 48, or 72 h in the absence or presence of these inhibitors/antagonists, after which cell viability and proliferation were assessed. Results: The levels of NOx- and adenosine were significantly higher in the periprostatic adipose tissue supernatant (30 min, without prostate) when compared to the vehicle. A trend toward an increase in the levels of NOX was observed after 60 min. PPAT supernatant from obese mice significantly reduced the PE-induced contractions only in prostate from obese mice. The co-incubation of periprostatic adipose tissue with L-NAME, 1400W, ODQ, or ZM241385 attenuated the anticontractile activity of the periprostatic adipose tissue supernatant. Incubation with the supernatant of periprostatic adipose tissue from obese mice significantly increased the viability of PNT1-A cells and attenuated expression of the apoptosis marker protein caspase-3 when compared to cells incubated with periprostatic adipose tissue from lean mice. Hyperplastic cells (BPH-1) incubated with periprostatic adipose tissue from obese mice showed greater proliferation after 24 h, 48 h, and 72 h compared to cells incubated with culture medium alone. BPH-1 cell proliferation in the presence of PPAT supernatant was attenuated by NO-signaling pathway inhibitors and by adenosine receptor antagonists after 72 h. Conclusion: NO and adenosine are involved in the anticontractile and pro-proliferative activities of periprostatic adipose tissue supernatant from obese mice. More studies are needed to determine whether the blockade of NO and/or adenosine derived from periprostatic adipose tissue can improve prostate function.
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Affiliation(s)
- Gabriela Reolon Passos
- Section of Pharmacology, Department of Translational Medicine, Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas, Brazil
| | - Mariana G. de Oliveira
- Section of Pharmacology, Department of Translational Medicine, Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas, Brazil
| | - Ana Carolina Ghezzi
- Section of Pharmacology, Department of Translational Medicine, Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas, Brazil
| | - Glaucia C. Mello
- Section of Pharmacology, Department of Translational Medicine, Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas, Brazil
| | - Carlos Arturo Levi D’Ancona
- Division of Urology, Department of Surgery, Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas, Brazil
| | - Simone Aparecida Teixeira
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo (USP), Sao Paulo, Brazil
| | - Marcelo Nicolas Muscará
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo (USP), Sao Paulo, Brazil
| | | | | | | | - Edson Antunes
- Section of Pharmacology, Department of Translational Medicine, Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas, Brazil
| | - Fabiola Zakia Mónica
- Section of Pharmacology, Department of Translational Medicine, Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas, Brazil
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56
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Wang C, Wang X, Hu W. Molecular and cellular regulation of thermogenic fat. Front Endocrinol (Lausanne) 2023; 14:1215772. [PMID: 37465124 PMCID: PMC10351381 DOI: 10.3389/fendo.2023.1215772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 06/14/2023] [Indexed: 07/20/2023] Open
Abstract
Thermogenic fat, consisting of brown and beige adipocytes, dissipates energy in the form of heat, in contrast to the characteristics of white adipocytes that store energy. Increasing energy expenditure by activating brown adipocytes or inducing beige adipocytes is a potential therapeutic strategy for treating obesity and type 2 diabetes. Thus, a better understanding of the underlying mechanisms of thermogenesis provides novel therapeutic interventions for metabolic diseases. In this review, we summarize the recent advances in the molecular regulation of thermogenesis, focusing on transcription factors, epigenetic regulators, metabolites, and non-coding RNAs. We further discuss the intercellular and inter-organ crosstalk that regulate thermogenesis, considering the heterogeneity and complex tissue microenvironment of thermogenic fat.
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Affiliation(s)
- Cuihua Wang
- GMU-GIBH Joint School of Life Sciences, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, Guangzhou Laboratory, Guangzhou Medical University, Guangzhou, China
- Zhongshan School of Medicine, Sun Yat-Sen University, Guangdong, China
| | - Xianju Wang
- GMU-GIBH Joint School of Life Sciences, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, Guangzhou Laboratory, Guangzhou Medical University, Guangzhou, China
| | - Wenxiang Hu
- GMU-GIBH Joint School of Life Sciences, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, Guangzhou Laboratory, Guangzhou Medical University, Guangzhou, China
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57
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Xie B, Gao D, Zhou B, Chen S, Wang L. New discoveries in the field of metabolism by applying single-cell and spatial omics. J Pharm Anal 2023; 13:711-725. [PMID: 37577385 PMCID: PMC10422156 DOI: 10.1016/j.jpha.2023.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 05/29/2023] [Accepted: 06/02/2023] [Indexed: 08/15/2023] Open
Abstract
Single-cell multi-Omics (SCM-Omics) and spatial multi-Omics (SM-Omics) technologies provide state-of-the-art methods for exploring the composition and function of cell types in tissues/organs. Since its emergence in 2009, single-cell RNA sequencing (scRNA-seq) has yielded many groundbreaking new discoveries. The combination of this method with the emergence and development of SM-Omics techniques has been a pioneering strategy in neuroscience, developmental biology, and cancer research, especially for assessing tumor heterogeneity and T-cell infiltration. In recent years, the application of these methods in the study of metabolic diseases has also increased. The emerging SCM-Omics and SM-Omics approaches allow the molecular and spatial analysis of cells to explore regulatory states and determine cell fate, and thus provide promising tools for unraveling heterogeneous metabolic processes and making them amenable to intervention. Here, we review the evolution of SCM-Omics and SM-Omics technologies, and describe the progress in the application of SCM-Omics and SM-Omics in metabolism-related diseases, including obesity, diabetes, nonalcoholic fatty liver disease (NAFLD) and cardiovascular disease (CVD). We also conclude that the application of SCM-Omics and SM-Omics approaches can help resolve the molecular mechanisms underlying the pathogenesis of metabolic diseases in the body and facilitate therapeutic measures for metabolism-related diseases. This review concludes with an overview of the current status of this emerging field and the outlook for its future.
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Affiliation(s)
- Baocai Xie
- Department of Critical Care Medicine, Shenzhen Institute of Translational Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen, Guangdong, 518060, China
- Department of Respiratory Diseases, The Research and Application Center of Precision Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, 450014, China
| | - Dengfeng Gao
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Biqiang Zhou
- Department of Geriatric & Spinal Pain Multi-Department Treatment, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen, Guangdong, 518035, China
| | - Shi Chen
- Department of Critical Care Medicine, Shenzhen Institute of Translational Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen, Guangdong, 518060, China
- Department of Gastroenterology, Ministry of Education Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Lianrong Wang
- Department of Respiratory Diseases, The Research and Application Center of Precision Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, 450014, China
- Department of Gastroenterology, Ministry of Education Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
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Valenzuela PL, Carrera-Bastos P, Castillo-García A, Lieberman DE, Santos-Lozano A, Lucia A. Obesity and the risk of cardiometabolic diseases. Nat Rev Cardiol 2023; 20:475-494. [PMID: 36927772 DOI: 10.1038/s41569-023-00847-5] [Citation(s) in RCA: 53] [Impact Index Per Article: 53.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/08/2023] [Indexed: 03/18/2023]
Abstract
The prevalence of obesity has reached pandemic proportions, and now approximately 25% of adults in Westernized countries have obesity. Recognized as a major health concern, obesity is associated with multiple comorbidities, particularly cardiometabolic disorders. In this Review, we present obesity as an evolutionarily novel condition, summarize the epidemiological evidence on its detrimental cardiometabolic consequences and discuss the major mechanisms involved in the association between obesity and the risk of cardiometabolic diseases. We also examine the role of potential moderators of this association, with evidence for and against the so-called 'metabolically healthy obesity phenotype', the 'fatness but fitness' paradox or the 'obesity paradox'. Although maintenance of optimal cardiometabolic status should be a primary goal in individuals with obesity, losing body weight and, particularly, excess visceral adiposity seems to be necessary to minimize the risk of cardiometabolic diseases.
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Affiliation(s)
- Pedro L Valenzuela
- Physical Activity and Health Research Group (PaHerg), Research Institute of Hospital 12 de Octubre ("i + 12"), Madrid, Spain.
- Department of Systems Biology, University of Alcalá, Alcalá de Henares, Spain.
| | - Pedro Carrera-Bastos
- Center for Primary Health Care Research, Department of Clinical Sciences, Lund University, Malmö, Sweden
- Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, Spain
| | | | - Daniel E Lieberman
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
| | - Alejandro Santos-Lozano
- Physical Activity and Health Research Group (PaHerg), Research Institute of Hospital 12 de Octubre ("i + 12"), Madrid, Spain
- Department of Health Sciences, European University Miguel de Cervantes, Valladolid, Spain
| | - Alejandro Lucia
- Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, Spain.
- CIBER of Frailty and Healthy Aging (CIBERFES), Madrid, Spain.
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59
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Zhao L, Lee AS, Sasagawa K, Sokol J, Wang Y, Ransom RC, Zhao X, Ma C, Steininger HM, Koepke LS, Borrelli MR, Brewer RE, Lee LL, Huang X, Ambrosi TH, Sinha R, Hoover MY, Seita J, Weissman IL, Wu JC, Wan DC, Xiao J, Longaker MT, Nguyen PK, Chan CK. A Combination of Distinct Vascular Stem/Progenitor Cells for Neovascularization and Ischemic Rescue. Arterioscler Thromb Vasc Biol 2023; 43:1262-1277. [PMID: 37051932 PMCID: PMC10281192 DOI: 10.1161/atvbaha.122.317943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 03/09/2023] [Accepted: 03/28/2023] [Indexed: 04/14/2023]
Abstract
BACKGROUND Peripheral vascular disease remains a leading cause of vascular morbidity and mortality worldwide despite advances in medical and surgical therapy. Besides traditional approaches, which can only restore blood flow to native arteries, an alternative approach is to enhance the growth of new vessels, thereby facilitating the physiological response to ischemia. METHODS The ActinCreER/R26VT2/GK3 Rainbow reporter mouse was used for unbiased in vivo survey of injury-responsive vasculogenic clonal formation. Prospective isolation and transplantation were used to determine vessel-forming capacity of different populations. Single-cell RNA-sequencing was used to characterize distinct vessel-forming populations and their interactions. RESULTS Two populations of distinct vascular stem/progenitor cells (VSPCs) were identified from adipose-derived mesenchymal stromal cells: VSPC1 is CD45-Ter119-Tie2+PDGFRa-CD31+CD105highSca1low, which gives rise to stunted vessels (incomplete tubular structures) in a transplant setting, and VSPC2 which is CD45-Ter119-Tie2+PDGFRa+CD31-CD105lowSca1high and forms stunted vessels and fat. Interestingly, cotransplantation of VSPC1 and VSPC2 is required to form functional vessels that improve perfusion in the mouse hindlimb ischemia model. Similarly, VSPC1 and VSPC2 populations isolated from human adipose tissue could rescue the ischemic condition in mice. CONCLUSIONS These findings suggest that autologous cotransplantation of synergistic VSPCs from nonessential adipose tissue can promote neovascularization and represents a promising treatment for ischemic disease.
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Affiliation(s)
- Liming Zhao
- Institute for Stem Cell Biology and Regenerative Medicine (L.Z., Y.W., R.C.R., X.Z., C.M., H.M.S., L.S.K., M.R.B., R.E.B., L.Y.L., T.H.A., R.S., M.Y.H., I.L.W., J.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
- Department of Surgery, Division of Plastic and Reconstructive Surgery (L.Z., Y.W., R.C.R., C.M., H.M.S., L.S.K., M.R.B., L.L.Y.L., T.H.A., D.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (L.Z., Y.W., J.X.)
| | - Andrew S. Lee
- School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, China (A.S.L.)
- Institute for Cancer Research, Shenzhen Bay Laboratory, China (A.S.L.)
| | - Koki Sasagawa
- Stanford Cardiovascular Institute (K.S., J.S., X.Z., X.H., J.C.W., M.T.L., P.K.N., C.K.F.C.), Stanford University School of Medicine, CA
- Department of Medicine, Division of Cardiovascular Medicine (K.S., J.S., X.Z., X.H., J.C.W., P.K.N.), Stanford University School of Medicine, CA
| | - Jan Sokol
- Stanford Cardiovascular Institute (K.S., J.S., X.Z., X.H., J.C.W., M.T.L., P.K.N., C.K.F.C.), Stanford University School of Medicine, CA
- Department of Medicine, Division of Cardiovascular Medicine (K.S., J.S., X.Z., X.H., J.C.W., P.K.N.), Stanford University School of Medicine, CA
- Center for Integrative Medical Sciences and Advanced Data Science Project, RIKEN, Tokyo, Japan (J.S.)
| | - Yuting Wang
- Institute for Stem Cell Biology and Regenerative Medicine (L.Z., Y.W., R.C.R., X.Z., C.M., H.M.S., L.S.K., M.R.B., R.E.B., L.Y.L., T.H.A., R.S., M.Y.H., I.L.W., J.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
- Department of Surgery, Division of Plastic and Reconstructive Surgery (L.Z., Y.W., R.C.R., C.M., H.M.S., L.S.K., M.R.B., L.L.Y.L., T.H.A., D.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (L.Z., Y.W., J.X.)
| | - Ryan C. Ransom
- Institute for Stem Cell Biology and Regenerative Medicine (L.Z., Y.W., R.C.R., X.Z., C.M., H.M.S., L.S.K., M.R.B., R.E.B., L.Y.L., T.H.A., R.S., M.Y.H., I.L.W., J.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
- Department of Surgery, Division of Plastic and Reconstructive Surgery (L.Z., Y.W., R.C.R., C.M., H.M.S., L.S.K., M.R.B., L.L.Y.L., T.H.A., D.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
| | - Xin Zhao
- Institute for Stem Cell Biology and Regenerative Medicine (L.Z., Y.W., R.C.R., X.Z., C.M., H.M.S., L.S.K., M.R.B., R.E.B., L.Y.L., T.H.A., R.S., M.Y.H., I.L.W., J.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
- Stanford Cardiovascular Institute (K.S., J.S., X.Z., X.H., J.C.W., M.T.L., P.K.N., C.K.F.C.), Stanford University School of Medicine, CA
- Department of Medicine, Division of Cardiovascular Medicine (K.S., J.S., X.Z., X.H., J.C.W., P.K.N.), Stanford University School of Medicine, CA
| | - Chao Ma
- Institute for Stem Cell Biology and Regenerative Medicine (L.Z., Y.W., R.C.R., X.Z., C.M., H.M.S., L.S.K., M.R.B., R.E.B., L.Y.L., T.H.A., R.S., M.Y.H., I.L.W., J.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
- Department of Surgery, Division of Plastic and Reconstructive Surgery (L.Z., Y.W., R.C.R., C.M., H.M.S., L.S.K., M.R.B., L.L.Y.L., T.H.A., D.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
| | - Holly M. Steininger
- Institute for Stem Cell Biology and Regenerative Medicine (L.Z., Y.W., R.C.R., X.Z., C.M., H.M.S., L.S.K., M.R.B., R.E.B., L.Y.L., T.H.A., R.S., M.Y.H., I.L.W., J.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
- Department of Surgery, Division of Plastic and Reconstructive Surgery (L.Z., Y.W., R.C.R., C.M., H.M.S., L.S.K., M.R.B., L.L.Y.L., T.H.A., D.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
| | - Lauren S. Koepke
- Institute for Stem Cell Biology and Regenerative Medicine (L.Z., Y.W., R.C.R., X.Z., C.M., H.M.S., L.S.K., M.R.B., R.E.B., L.Y.L., T.H.A., R.S., M.Y.H., I.L.W., J.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
- Department of Surgery, Division of Plastic and Reconstructive Surgery (L.Z., Y.W., R.C.R., C.M., H.M.S., L.S.K., M.R.B., L.L.Y.L., T.H.A., D.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
| | - Mimi R. Borrelli
- Institute for Stem Cell Biology and Regenerative Medicine (L.Z., Y.W., R.C.R., X.Z., C.M., H.M.S., L.S.K., M.R.B., R.E.B., L.Y.L., T.H.A., R.S., M.Y.H., I.L.W., J.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
| | - Rachel E. Brewer
- Institute for Stem Cell Biology and Regenerative Medicine (L.Z., Y.W., R.C.R., X.Z., C.M., H.M.S., L.S.K., M.R.B., R.E.B., L.Y.L., T.H.A., R.S., M.Y.H., I.L.W., J.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
| | - Lorene L.Y. Lee
- Institute for Stem Cell Biology and Regenerative Medicine (L.Z., Y.W., R.C.R., X.Z., C.M., H.M.S., L.S.K., M.R.B., R.E.B., L.Y.L., T.H.A., R.S., M.Y.H., I.L.W., J.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
- Department of Surgery, Division of Plastic and Reconstructive Surgery (L.Z., Y.W., R.C.R., C.M., H.M.S., L.S.K., M.R.B., L.L.Y.L., T.H.A., D.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
| | - Xianxi Huang
- Stanford Cardiovascular Institute (K.S., J.S., X.Z., X.H., J.C.W., M.T.L., P.K.N., C.K.F.C.), Stanford University School of Medicine, CA
- Department of Medicine, Division of Cardiovascular Medicine (K.S., J.S., X.Z., X.H., J.C.W., P.K.N.), Stanford University School of Medicine, CA
| | - Thomas H. Ambrosi
- Institute for Stem Cell Biology and Regenerative Medicine (L.Z., Y.W., R.C.R., X.Z., C.M., H.M.S., L.S.K., M.R.B., R.E.B., L.Y.L., T.H.A., R.S., M.Y.H., I.L.W., J.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
- Department of Surgery, Division of Plastic and Reconstructive Surgery (L.Z., Y.W., R.C.R., C.M., H.M.S., L.S.K., M.R.B., L.L.Y.L., T.H.A., D.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
| | - Rahul Sinha
- Institute for Stem Cell Biology and Regenerative Medicine (L.Z., Y.W., R.C.R., X.Z., C.M., H.M.S., L.S.K., M.R.B., R.E.B., L.Y.L., T.H.A., R.S., M.Y.H., I.L.W., J.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
| | - Malachia Y. Hoover
- Institute for Stem Cell Biology and Regenerative Medicine (L.Z., Y.W., R.C.R., X.Z., C.M., H.M.S., L.S.K., M.R.B., R.E.B., L.Y.L., T.H.A., R.S., M.Y.H., I.L.W., J.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
| | - Jun Seita
- Institute for Stem Cell Biology and Regenerative Medicine (L.Z., Y.W., R.C.R., X.Z., C.M., H.M.S., L.S.K., M.R.B., R.E.B., L.Y.L., T.H.A., R.S., M.Y.H., I.L.W., J.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
- Department of Surgery, Division of Plastic and Reconstructive Surgery (L.Z., Y.W., R.C.R., C.M., H.M.S., L.S.K., M.R.B., L.L.Y.L., T.H.A., D.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
- Stanford Cardiovascular Institute (K.S., J.S., X.Z., X.H., J.C.W., M.T.L., P.K.N., C.K.F.C.), Stanford University School of Medicine, CA
- Department of Medicine, Division of Cardiovascular Medicine (K.S., J.S., X.Z., X.H., J.C.W., P.K.N.), Stanford University School of Medicine, CA
- Department of Developmental Biology (I.L.W., C.K.F.C.), Stanford University School of Medicine, CA
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (L.Z., Y.W., J.X.)
- School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, China (A.S.L.)
- Institute for Cancer Research, Shenzhen Bay Laboratory, China (A.S.L.)
- Center for Integrative Medical Sciences and Advanced Data Science Project, RIKEN, Tokyo, Japan (J.S.)
| | - Irving L. Weissman
- Institute for Stem Cell Biology and Regenerative Medicine (L.Z., Y.W., R.C.R., X.Z., C.M., H.M.S., L.S.K., M.R.B., R.E.B., L.Y.L., T.H.A., R.S., M.Y.H., I.L.W., J.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
- Department of Developmental Biology (I.L.W., C.K.F.C.), Stanford University School of Medicine, CA
| | - Joseph C. Wu
- Institute for Stem Cell Biology and Regenerative Medicine (L.Z., Y.W., R.C.R., X.Z., C.M., H.M.S., L.S.K., M.R.B., R.E.B., L.Y.L., T.H.A., R.S., M.Y.H., I.L.W., J.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
- Stanford Cardiovascular Institute (K.S., J.S., X.Z., X.H., J.C.W., M.T.L., P.K.N., C.K.F.C.), Stanford University School of Medicine, CA
- Department of Medicine, Division of Cardiovascular Medicine (K.S., J.S., X.Z., X.H., J.C.W., P.K.N.), Stanford University School of Medicine, CA
| | - Derrick C. Wan
- Department of Surgery, Division of Plastic and Reconstructive Surgery (L.Z., Y.W., R.C.R., C.M., H.M.S., L.S.K., M.R.B., L.L.Y.L., T.H.A., D.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
| | - Jun Xiao
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (L.Z., Y.W., J.X.)
| | - Michael T. Longaker
- Institute for Stem Cell Biology and Regenerative Medicine (L.Z., Y.W., R.C.R., X.Z., C.M., H.M.S., L.S.K., M.R.B., R.E.B., L.Y.L., T.H.A., R.S., M.Y.H., I.L.W., J.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
- Department of Surgery, Division of Plastic and Reconstructive Surgery (L.Z., Y.W., R.C.R., C.M., H.M.S., L.S.K., M.R.B., L.L.Y.L., T.H.A., D.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
| | - Patricia K. Nguyen
- Stanford Cardiovascular Institute (K.S., J.S., X.Z., X.H., J.C.W., M.T.L., P.K.N., C.K.F.C.), Stanford University School of Medicine, CA
- Department of Medicine, Division of Cardiovascular Medicine (K.S., J.S., X.Z., X.H., J.C.W., P.K.N.), Stanford University School of Medicine, CA
| | - Charles K.F. Chan
- Institute for Stem Cell Biology and Regenerative Medicine (L.Z., Y.W., R.C.R., X.Z., C.M., H.M.S., L.S.K., M.R.B., R.E.B., L.Y.L., T.H.A., R.S., M.Y.H., I.L.W., J.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
- Department of Surgery, Division of Plastic and Reconstructive Surgery (L.Z., Y.W., R.C.R., C.M., H.M.S., L.S.K., M.R.B., L.L.Y.L., T.H.A., D.C.W., M.T.L., C.K.F.C.), Stanford University School of Medicine, CA
- Department of Developmental Biology (I.L.W., C.K.F.C.), Stanford University School of Medicine, CA
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60
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Clemente-Suárez VJ, Martín-Rodríguez A, Redondo-Flórez L, López-Mora C, Yáñez-Sepúlveda R, Tornero-Aguilera JF. New Insights and Potential Therapeutic Interventions in Metabolic Diseases. Int J Mol Sci 2023; 24:10672. [PMID: 37445852 DOI: 10.3390/ijms241310672] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/13/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023] Open
Abstract
Endocrine homeostasis and metabolic diseases have been the subject of extensive research in recent years. The development of new techniques and insights has led to a deeper understanding of the mechanisms underlying these conditions and opened up new avenues for diagnosis and treatment. In this review, we discussed the rise of metabolic diseases, especially in Western countries, the genetical, psychological, and behavioral basis of metabolic diseases, the role of nutrition and physical activity in the development of metabolic diseases, the role of single-cell transcriptomics, gut microbiota, epigenetics, advanced imaging techniques, and cell-based therapies in metabolic diseases. Finally, practical applications derived from this information are made.
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Affiliation(s)
- Vicente Javier Clemente-Suárez
- Faculty of Sports Sciences, Universidad Europea de Madrid, Tajo Street, s/n, 28670 Madrid, Spain
- Grupo de Investigación en Cultura, Educación y Sociedad, Universidad de la Costa, Barranquilla 080002, Colombia
| | | | - Laura Redondo-Flórez
- Department of Health Sciences, Faculty of Biomedical and Health Sciences, Universidad Europea de Madrid, Tajo Street s/n, 28670 Villaviciosa de Odon, Spain
| | - Clara López-Mora
- Facultad de Ciencias Biomédicas y de la Salud, Universidad Europea de Valencia, Pg. de l'Albereda, 7, 46010 València, Spain
| | - Rodrigo Yáñez-Sepúlveda
- Faculty of Education and Social Sciences, Universidad Andres Bello, Viña del Mar 2520000, Chile
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61
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Wang G, Wang QA. Maintenance of adipose progenitors in adipogenesis. Nat Metab 2023:10.1038/s42255-023-00810-1. [PMID: 37337124 DOI: 10.1038/s42255-023-00810-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Affiliation(s)
- Guan Wang
- Department of Molecular & Cellular Endocrinology, Arthur Riggs Diabetes and Metabolism Research Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Qiong A Wang
- Department of Molecular & Cellular Endocrinology, Arthur Riggs Diabetes and Metabolism Research Institute, City of Hope Medical Center, Duarte, CA, USA.
- Comprehensive Cancer Center, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, USA.
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62
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Li J, Jin C, Gustafsson S, Rao A, Wabitsch M, Park CY, Quertermous T, Knowles JW, Bielczyk-Maczynska E. Single-cell transcriptome dataset of human and mouse in vitro adipogenesis models. Sci Data 2023; 10:387. [PMID: 37328521 PMCID: PMC10275883 DOI: 10.1038/s41597-023-02293-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 06/06/2023] [Indexed: 06/18/2023] Open
Abstract
Adipogenesis is a process in which fat-specific progenitor cells (preadipocytes) differentiate into adipocytes that carry out the key metabolic functions of the adipose tissue, including glucose uptake, energy storage, and adipokine secretion. Several cell lines are routinely used to study the molecular regulation of adipogenesis, in particular the immortalized mouse 3T3-L1 line and the primary human Simpson-Golabi-Behmel syndrome (SGBS) line. However, the cell-to-cell variability of transcriptional changes prior to and during adipogenesis in these models is not well understood. Here, we present a single-cell RNA-Sequencing (scRNA-Seq) dataset collected before and during adipogenic differentiation of 3T3-L1 and SGBS cells. To minimize the effects of experimental variation, we mixed 3T3-L1 and SGBS cells and used computational analysis to demultiplex transcriptomes of mouse and human cells. In both models, adipogenesis results in the appearance of three cell clusters, corresponding to preadipocytes, early and mature adipocytes. These data provide a groundwork for comparative studies on these widely used in vitro models of human and mouse adipogenesis, and on cell-to-cell variability during this process.
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Affiliation(s)
- Jiehan Li
- Division of Cardiovascular Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Stanford Diabetes Research Center, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Christopher Jin
- Division of Cardiovascular Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Stefan Gustafsson
- Clinical Epidemiology Unit, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Abhiram Rao
- Department of Bioengineering, Stanford University, Stanford, CA, 94305, USA
| | - Martin Wabitsch
- Department of Pediatrics and Adolescent Medicine, Center for Rare Endocrine Diseases, Division of Pediatric Endocrinology and Diabetes, Ulm University Medical Centre, Ulm, 89075, Germany
| | - Chong Y Park
- Division of Cardiovascular Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Stanford Diabetes Research Center, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Thomas Quertermous
- Division of Cardiovascular Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Joshua W Knowles
- Division of Cardiovascular Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA.
- Stanford Diabetes Research Center, Stanford University School of Medicine, Stanford, CA, 94305, USA.
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, 94305, USA.
- Stanford Prevention Research Center, Stanford University School of Medicine, Stanford, CA, 94305, USA.
| | - Ewa Bielczyk-Maczynska
- Division of Cardiovascular Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA.
- Stanford Diabetes Research Center, Stanford University School of Medicine, Stanford, CA, 94305, USA.
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, 94305, USA.
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63
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Garritson JD, Zhang J, Achenbach A, Ferhat M, Eich E, Stubben CJ, Martinez PL, Ibele AR, Hilgendorf KI, Boudina S. BMPER is a marker of adipose progenitors and adipocytes and a positive modulator of adipogenesis. Commun Biol 2023; 6:638. [PMID: 37311809 DOI: 10.1038/s42003-023-05011-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 06/02/2023] [Indexed: 06/15/2023] Open
Abstract
Autocrine and paracrine signaling regulating adipogenesis in white adipose tissue remains largely unclear. Here we used single-cell RNA-sequencing (RNA-seq) and single nuclei RNA-sequencing (snRNA-seq) to identify markers of adipose progenitor cells (APCs) and adipogenic modulators in visceral adipose tissue (VAT) of humans and mice. Our study confirmed the presence of major cellular clusters in humans and mice and established important sex and diet-specific dissimilarities in cell proportions. Here we show that bone morphogenetic protein (BMP)-binding endothelial regulator (BMPER) is a conserved marker for APCs and adipocytes in VAT in humans and mice. Further, BMPER is highly enriched in lineage negative stromal vascular cells and its expression is significantly higher in visceral compared to subcutaneous APCs in mice. BMPER expression and release peaked by day four post-differentiation in 3T3-L1 preadipocytes. We reveal that BMPER is required for adipogenesis both in 3T3-L1 preadipocytes and in mouse APCs. Together, this study identified BMPER as a positive modulator of adipogenesis.
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Affiliation(s)
- Jacob D Garritson
- Department of Nutrition and Integrative Physiology, College of Health, University of Utah, Salt Lake City, UT, 84112, USA
| | - Jiabi Zhang
- Department of Nutrition and Integrative Physiology, College of Health, University of Utah, Salt Lake City, UT, 84112, USA
| | - Alan Achenbach
- Department of Nutrition and Integrative Physiology, College of Health, University of Utah, Salt Lake City, UT, 84112, USA
| | - Maroua Ferhat
- Department of Nutrition and Integrative Physiology, College of Health, University of Utah, Salt Lake City, UT, 84112, USA
| | - Emile Eich
- Department of Nutrition and Integrative Physiology, College of Health, University of Utah, Salt Lake City, UT, 84112, USA
| | - Chris J Stubben
- Bioinformatics Shared Resource, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA
| | - Paige L Martinez
- Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Anna R Ibele
- Bioinformatics Shared Resource, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA
| | - Keren I Hilgendorf
- Department of Biochemistry, University of Utah, Salt Lake City, UT, 84112, USA
| | - Sihem Boudina
- Department of Nutrition and Integrative Physiology, College of Health, University of Utah, Salt Lake City, UT, 84112, USA.
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64
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Baptista LS, Silva KR, Jobeili L, Guillot L, Sigaudo-Roussel D. Unraveling White Adipose Tissue Heterogeneity and Obesity by Adipose Stem/Stromal Cell Biology and 3D Culture Models. Cells 2023; 12:1583. [PMID: 37371053 DOI: 10.3390/cells12121583] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/30/2023] [Accepted: 06/02/2023] [Indexed: 06/29/2023] Open
Abstract
The immune and endocrine dysfunctions of white adipose tissue are a hallmark of metabolic disorders such as obesity and type 2 diabetes. In humans, white adipose tissue comprises distinct depots broadly distributed under the skin (hypodermis) and as internal depots (visceral). Depot-specific ASCs could account for visceral and subcutaneous adipose tissue properties, by regulating adipogenesis and immunomodulation. More importantly, visceral and subcutaneous depots account for distinct contributions to obesity and its metabolic comorbidities. Recently, distinct ASCs subpopulations were also described in subcutaneous adipose tissue. Interestingly, the superficial layer closer to the dermis shows hyperplastic and angiogenic capacities, whereas the deep layer is considered as having inflammatory properties similar to visceral. The aim of this focus review is to bring the light of recent discoveries into white adipose tissue heterogeneity together with the biology of distinct ASCs subpopulations and to explore adipose tissue 3D models revealing their advantages, disadvantages, and contributions to elucidate the role of ASCs in obesity development. Recent advances in adipose tissue organoids opened an avenue of possibilities to recreate the main cellular and molecular events of obesity leading to a deep understanding of this inflammatory disease besides contributing to drug discovery. Furthermore, 3D organ-on-a-chip will add reproducibility to these adipose tissue models contributing to their translation to the pharmaceutical industry.
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Affiliation(s)
- Leandra S Baptista
- Numpex-bio, Campus UFRJ Duque de Caxias Prof Geraldo Cidade, Universidade Federal do Rio de Janeiro, Rio de Janeiro 25240005, Brazil
| | - Karina R Silva
- Laboratory of Stem Cell Research, Histology and Embryology Department, Biology Institute, State University of Rio de Janeiro, Rio de Janeiro 20550900, Brazil
- Teaching and Research Division, National Institute of Traumatology and Orthopedics, Rio de Janeiro 20940070, Brazil
| | - Lara Jobeili
- Laboratory of Tissue Biology and Therapeutic Engineering, University of Lyon, Claude Bernard University Lyon 1, CNRS, LBTI UMR 5305, 69367 Lyon, France
| | - Lucile Guillot
- Laboratory of Tissue Biology and Therapeutic Engineering, University of Lyon, Claude Bernard University Lyon 1, CNRS, LBTI UMR 5305, 69367 Lyon, France
- Urgo Research Innovation and Development, 21300 Chenôve, France
| | - Dominique Sigaudo-Roussel
- Laboratory of Tissue Biology and Therapeutic Engineering, University of Lyon, Claude Bernard University Lyon 1, CNRS, LBTI UMR 5305, 69367 Lyon, France
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65
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Theodoris CV, Xiao L, Chopra A, Chaffin MD, Al Sayed ZR, Hill MC, Mantineo H, Brydon EM, Zeng Z, Liu XS, Ellinor PT. Transfer learning enables predictions in network biology. Nature 2023; 618:616-624. [PMID: 37258680 PMCID: PMC10949956 DOI: 10.1038/s41586-023-06139-9] [Citation(s) in RCA: 59] [Impact Index Per Article: 59.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 04/27/2023] [Indexed: 06/02/2023]
Abstract
Mapping gene networks requires large amounts of transcriptomic data to learn the connections between genes, which impedes discoveries in settings with limited data, including rare diseases and diseases affecting clinically inaccessible tissues. Recently, transfer learning has revolutionized fields such as natural language understanding1,2 and computer vision3 by leveraging deep learning models pretrained on large-scale general datasets that can then be fine-tuned towards a vast array of downstream tasks with limited task-specific data. Here, we developed a context-aware, attention-based deep learning model, Geneformer, pretrained on a large-scale corpus of about 30 million single-cell transcriptomes to enable context-specific predictions in settings with limited data in network biology. During pretraining, Geneformer gained a fundamental understanding of network dynamics, encoding network hierarchy in the attention weights of the model in a completely self-supervised manner. Fine-tuning towards a diverse panel of downstream tasks relevant to chromatin and network dynamics using limited task-specific data demonstrated that Geneformer consistently boosted predictive accuracy. Applied to disease modelling with limited patient data, Geneformer identified candidate therapeutic targets for cardiomyopathy. Overall, Geneformer represents a pretrained deep learning model from which fine-tuning towards a broad range of downstream applications can be pursued to accelerate discovery of key network regulators and candidate therapeutic targets.
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Affiliation(s)
- Christina V Theodoris
- Department of Data Science, Dana-Farber Cancer Institute, Boston, MA, USA.
- Cardiovascular Disease Initiative and Precision Cardiology Laboratory, Broad Institute of MIT and Harvard, Cambridge, MA, USA.
- Division of Genetics and Genomics, Boston Children's Hospital, Boston, MA, USA.
- Harvard Medical School Genetics Training Program, Boston, USA.
| | - Ling Xiao
- Cardiovascular Disease Initiative and Precision Cardiology Laboratory, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA, USA
| | - Anant Chopra
- Precision Cardiology Laboratory, Bayer US LLC, Cambridge, MA, USA
| | - Mark D Chaffin
- Cardiovascular Disease Initiative and Precision Cardiology Laboratory, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Zeina R Al Sayed
- Cardiovascular Disease Initiative and Precision Cardiology Laboratory, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Matthew C Hill
- Cardiovascular Disease Initiative and Precision Cardiology Laboratory, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA, USA
| | - Helene Mantineo
- Cardiovascular Disease Initiative and Precision Cardiology Laboratory, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA, USA
| | | | - Zexian Zeng
- Department of Data Science, Dana-Farber Cancer Institute, Boston, MA, USA
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - X Shirley Liu
- Department of Data Science, Dana-Farber Cancer Institute, Boston, MA, USA
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Patrick T Ellinor
- Cardiovascular Disease Initiative and Precision Cardiology Laboratory, Broad Institute of MIT and Harvard, Cambridge, MA, USA.
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA, USA.
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Palani NP, Horvath C, Timshel PN, Folkertsma P, Grønning AGB, Henriksen TI, Peijs L, Jensen VH, Sun W, Jespersen NZ, Wolfrum C, Pers TH, Nielsen S, Scheele C. Adipogenic and SWAT cells separate from a common progenitor in human brown and white adipose depots. Nat Metab 2023; 5:996-1013. [PMID: 37337126 PMCID: PMC10290958 DOI: 10.1038/s42255-023-00820-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 05/11/2023] [Indexed: 06/21/2023]
Abstract
Adipocyte function is a major determinant of metabolic disease, warranting investigations of regulating mechanisms. We show at single-cell resolution that progenitor cells from four human brown and white adipose depots separate into two main cell fates, an adipogenic and a structural branch, developing from a common progenitor. The adipogenic gene signature contains mitochondrial activity genes, and associates with genome-wide association study traits for fat distribution. Based on an extracellular matrix and developmental gene signature, we name the structural branch of cells structural Wnt-regulated adipose tissue-resident (SWAT) cells. When stripped from adipogenic cells, SWAT cells display a multipotent phenotype by reverting towards progenitor state or differentiating into new adipogenic cells, dependent on media. Label transfer algorithms recapitulate the cell types in human adipose tissue datasets. In conclusion, we provide a differentiation map of human adipocytes and define the multipotent SWAT cell, providing a new perspective on adipose tissue regulation.
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Affiliation(s)
- Nagendra P Palani
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Carla Horvath
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Pascal N Timshel
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
- ZS Associates, Copenhagen, Denmark
| | - Pytrik Folkertsma
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Alexander G B Grønning
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Tora I Henriksen
- The Center of Inflammation and Metabolism and the Center for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Lone Peijs
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
- The Center of Inflammation and Metabolism and the Center for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Verena H Jensen
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
- The Center of Inflammation and Metabolism and the Center for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Wenfei Sun
- Institute of Food, Nutrition and Health, ETH Zurich, Zurich, Switzerland
| | - Naja Z Jespersen
- The Center of Inflammation and Metabolism and the Center for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Christian Wolfrum
- Institute of Food, Nutrition and Health, ETH Zurich, Zurich, Switzerland
| | - Tune H Pers
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
- The Novo Nordisk Foundation Center for Genomic Mechanisms of Disease, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Søren Nielsen
- The Center of Inflammation and Metabolism and the Center for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
- The Novo Nordisk Foundation Center for Genomic Mechanisms of Disease, Broad Institute of MIT and Harvard, Cambridge, MA, USA.
| | - Camilla Scheele
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark.
- The Center of Inflammation and Metabolism and the Center for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
- The Novo Nordisk Foundation Center for Genomic Mechanisms of Disease, Broad Institute of MIT and Harvard, Cambridge, MA, USA.
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67
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Gogiraju R, Witzler C, Shahneh F, Hubert A, Renner L, Bochenek ML, Zifkos K, Becker C, Thati M, Schäfer K. Deletion of endothelial leptin receptors in mice promotes diet-induced obesity. Sci Rep 2023; 13:8276. [PMID: 37217565 DOI: 10.1038/s41598-023-35281-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 05/16/2023] [Indexed: 05/24/2023] Open
Abstract
Obesity promotes endothelial dysfunction. Endothelial cells not only respond, but possibly actively promote the development of obesity and metabolic dysfunction. Our aim was to characterize the role of endothelial leptin receptors (LepR) for endothelial and whole body metabolism and diet-induced obesity. Mice with tamoxifen-inducible, Tie2.Cre-ERT2-mediated deletion of LepR in endothelial cells (End.LepR knockout, KO) were fed high-fat diet (HFD) for 16 weeks. Body weight gain, serum leptin levels, visceral adiposity and adipose tissue inflammation were more pronounced in obese End.LepR-KO mice, whereas fasting serum glucose and insulin levels or the extent of hepatic steatosis did not differ. Reduced brain endothelial transcytosis of exogenous leptin, increased food intake and total energy balance were observed in End.LepR-KO mice and accompanied by brain perivascular macrophage accumulation, whereas physical activity, energy expenditure and respiratory exchange rates did not differ. Metabolic flux analysis revealed no changes in the bioenergetic profile of endothelial cells from brain or visceral adipose tissue, but higher glycolysis and mitochondrial respiration rates in those isolated from lungs. Our findings support a role for endothelial LepRs in the transport of leptin into the brain and neuronal control of food intake, and also suggest organ-specific changes in endothelial cell, but not whole-body metabolism.
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Affiliation(s)
- Rajinikanth Gogiraju
- Department of Cardiology, Cardiology I, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Claudius Witzler
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany
| | - Fatemeh Shahneh
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany
| | - Astrid Hubert
- Department of Cardiology, Cardiology I, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Luisa Renner
- Department of Cardiology, Cardiology I, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Magdalena L Bochenek
- Department of Cardiology, Cardiology I, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany
| | - Konstantinos Zifkos
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany
| | - Christian Becker
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany
- Clinic of Dermatology, University Clinic Münster, Münster, Germany
| | - Madhusudhan Thati
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany
| | - Katrin Schäfer
- Department of Cardiology, Cardiology I, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany.
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68
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Wang HW, Tang J, Sun L, Li Z, Deng M, Dai Z. Mechanism of immune attack in the progression of obesity-related type 2 diabetes. World J Diabetes 2023; 14:494-511. [PMID: 37273249 PMCID: PMC10236992 DOI: 10.4239/wjd.v14.i5.494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 03/06/2023] [Accepted: 03/30/2023] [Indexed: 05/15/2023] Open
Abstract
Obesity and overweight are widespread issues in adults, children, and adolescents globally, and have caused a noticeable rise in obesity-related complications such as type 2 diabetes mellitus (T2DM). Chronic low-grade inflammation is an important promotor of the pathogenesis of obesity-related T2DM. This proinflammatory activation occurs in multiple organs and tissues. Immune cell-mediated systemic attack is considered to contribute strongly to impaired insulin secretion, insulin resistance, and other metabolic disorders. This review focused on highlighting recent advances and underlying mechanisms of immune cell infiltration and inflammatory responses in the gut, islet, and insulin-targeting organs (adipose tissue, liver, skeletal muscle) in obesity-related T2DM. There is current evidence that both the innate and adaptive immune systems contribute to the development of obesity and T2DM.
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Affiliation(s)
- Hua-Wei Wang
- Department of Endocrinology, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei Province, China
| | - Jun Tang
- Department of Endocrinology, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei Province, China
| | - Li Sun
- Department of Endocrinology, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei Province, China
| | - Zhen Li
- Department of Hepatobiliary and Pancreatic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei Province, China
| | - Ming Deng
- Department of Radiology, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei Province, China
| | - Zhe Dai
- Department of Endocrinology, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei Province, China
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69
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Ye J, Gao C, Liang Y, Hou Z, Shi Y, Wang Y. Characteristic and fate determination of adipose precursors during adipose tissue remodeling. CELL REGENERATION (LONDON, ENGLAND) 2023; 12:13. [PMID: 37138165 PMCID: PMC10156890 DOI: 10.1186/s13619-023-00157-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Accepted: 12/30/2022] [Indexed: 05/05/2023]
Abstract
Adipose tissues are essential for actively regulating systemic energy balance, glucose homeostasis, immune responses, reproduction, and longevity. Adipocytes maintain dynamic metabolic needs and possess heterogeneity in energy storage and supply. Overexpansion of adipose tissue, especially the visceral type, is a high risk for diabetes and other metabolic diseases. Changes in adipocytes, hypertrophy or hyperplasia, contribute to the remodeling of obese adipose tissues, accompanied by abundant immune cell accumulation, decreased angiogenesis, and aberrant extracellular matrix deposition. The process and mechanism of adipogenesis are well known, however, adipose precursors and their fate decision are only being defined with recent information available to decipher how adipose tissues generate, maintain, and remodel. Here, we discuss the key findings that identify adipose precursors phenotypically, with special emphasis on the intrinsic and extrinsic signals in instructing and regulating the fate of adipose precursors under pathophysiological conditions. We hope that the information in this review lead to novel therapeutic strategies to combat obesity and related metabolic diseases.
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Affiliation(s)
- Jiayin Ye
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai, 200031, China
| | - Cheng Gao
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai, 200031, China
| | - Yong Liang
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai, 200031, China
| | - Zongliu Hou
- Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming, 650000, Yunnan, China
| | - Yufang Shi
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai, 200031, China.
- The Third Affiliated Hospital of Soochow University and State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Soochow University, 199 Renai Road, Suzhou, 215123, Jiangsu, China.
| | - Ying Wang
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai, 200031, China.
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70
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Zhou Y, Ping X, Guo Y, Heng BC, Wang Y, Meng Y, Jiang S, Wei Y, Lai B, Zhang X, Deng X. Assessing Biomaterial-Induced Stem Cell Lineage Fate by Machine Learning-Based Artificial Intelligence. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2210637. [PMID: 36756993 DOI: 10.1002/adma.202210637] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 02/02/2023] [Indexed: 05/12/2023]
Abstract
Current functional assessment of biomaterial-induced stem cell lineage fate in vitro mainly relies on biomarker-dependent methods with limited accuracy and efficiency. Here a "Mesenchymal stem cell Differentiation Prediction (MeD-P)" framework for biomaterial-induced cell lineage fate prediction is reported. MeD-P contains a cell-type-specific gene expression profile as a reference by integrating public RNA-seq data related to tri-lineage differentiation (osteogenesis, chondrogenesis, and adipogenesis) of human mesenchymal stem cells (hMSCs) and a predictive model for classifying hMSCs differentiation lineages using the k-nearest neighbors (kNN) strategy. It is shown that MeD-P exhibits an overall accuracy of 90.63% on testing datasets, which is significantly higher than the model constructed based on canonical marker genes (80.21%). Moreover, evaluations of multiple biomaterials show that MeD-P provides accurate prediction of lineage fate on different types of biomaterials as early as the first week of hMSCs culture. In summary, it is demonstrated that MeD-P is an efficient and accurate strategy for stem cell lineage fate prediction and preliminary biomaterial functional evaluation.
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Affiliation(s)
- Yingying Zhou
- Department of Dental Materials and Dental Medical Devices Testing Center, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, NMPA Key Laboratory for Dental Materials, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
| | - Xianfeng Ping
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, NMPA Key Laboratory for Dental Materials, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
| | - Yusi Guo
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, NMPA Key Laboratory for Dental Materials, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
| | - Boon Chin Heng
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, NMPA Key Laboratory for Dental Materials, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
| | - Yijun Wang
- Department of Dental Materials and Dental Medical Devices Testing Center, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, NMPA Key Laboratory for Dental Materials, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
| | - Yanze Meng
- Department of Dental Materials and Dental Medical Devices Testing Center, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, NMPA Key Laboratory for Dental Materials, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
| | - Shengjie Jiang
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, NMPA Key Laboratory for Dental Materials, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
| | - Yan Wei
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, NMPA Key Laboratory for Dental Materials, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
| | - Binbin Lai
- Biomedical Engineering Department, Peking University, Beijing, 100191, P. R. China
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing, 100034, P. R. China
| | - Xuehui Zhang
- Department of Dental Materials and Dental Medical Devices Testing Center, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, NMPA Key Laboratory for Dental Materials, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
| | - Xuliang Deng
- National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, NMPA Key Laboratory for Dental Materials, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
- Biomedical Engineering Department, Peking University, Beijing, 100191, P. R. China
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71
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Chavakis T, Alexaki VI, Ferrante AW. Macrophage function in adipose tissue homeostasis and metabolic inflammation. Nat Immunol 2023; 24:757-766. [PMID: 37012544 DOI: 10.1038/s41590-023-01479-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 01/23/2023] [Indexed: 04/05/2023]
Abstract
Obesity-related metabolic organ inflammation contributes to cardiometabolic disorders. In obese individuals, changes in lipid fluxes and storage elicit immune responses in the adipose tissue (AT), including expansion of immune cell populations and qualitative changes in the function of these cells. Although traditional models of metabolic inflammation posit that these immune responses disturb metabolic organ function, studies now suggest that immune cells, especially AT macrophages (ATMs), also have important adaptive functions in lipid homeostasis in states in which the metabolic function of adipocytes is taxed. Adverse consequences of AT metabolic inflammation might result from failure to maintain local lipid homeostasis and long-term effects on immune cells beyond the AT. Here we review the complex function of ATMs in AT homeostasis and metabolic inflammation. Additionally, we hypothesize that trained immunity, which involves long-term functional adaptations of myeloid cells and their bone marrow progenitors, can provide a model by which metabolic perturbations trigger chronic systemic inflammation.
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Affiliation(s)
- Triantafyllos Chavakis
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine, Technische Universität Dresden, Dresden, Germany.
- Paul Langerhans Institute Dresden of the Helmholtz Center Munich, University Hospital and Faculty of Medicine, Technische Universität Dresden, Dresden, Germany.
- German Center for Diabetes Research (DZD), Neuherberg, Germany.
- Centre for Cardiovascular Science, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK.
| | - Vasileia Ismini Alexaki
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Anthony W Ferrante
- Department of Medicine, Institute of Human Nutrition, Naomi Berrie Diabetes Center, Columbia University, New York, NY, USA
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72
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Saavedra-Peña RDM, Taylor N, Flannery C, Rodeheffer MS. Estradiol cycling drives female obesogenic adipocyte hyperplasia. Cell Rep 2023; 42:112390. [PMID: 37053070 PMCID: PMC10567995 DOI: 10.1016/j.celrep.2023.112390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 12/21/2022] [Accepted: 03/29/2023] [Indexed: 04/14/2023] Open
Abstract
White adipose tissue (WAT) distribution is sex dependent. Adipocyte hyperplasia contributes to WAT distribution in mice driven by cues in the tissue microenvironment, with females displaying hyperplasia in subcutaneous and visceral WAT, while males and ovariectomized females have visceral WAT (VWAT)-specific hyperplasia. However, the mechanism underlying sex-specific hyperplasia remains elusive. Here, transcriptome analysis in female mice shows that high-fat diet (HFD) induces estrogen signaling in adipocyte precursor cells (APCs). Analysis of APCs throughout the estrous cycle demonstrates increased proliferation only when proestrus (high estrogen) coincides with the onset of HFD feeding. We further show that estrogen receptor α (ERα) is required for this proliferation and that estradiol treatment at the onset of HFD feeding is sufficient to drive it. This estrous influence on APC proliferation leads to increased obesity driven by adipocyte hyperplasia. These data indicate that estrogen drives ERα-dependent obesogenic adipocyte hyperplasia in females, exacerbating obesity and contributing to the differential fat distribution between the sexes.
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Affiliation(s)
- Rocío Del M Saavedra-Peña
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT 06520, USA
| | - Natalia Taylor
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT 06520, USA
| | - Clare Flannery
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University, New Haven, CT 06520, USA; Section of Endocrinology and Metabolism, Yale University, New Haven, CT 06520, USA
| | - Matthew S Rodeheffer
- Department of Comparative Medicine, Yale University, New Haven, CT 06520, USA; Department of Cellular and Molecular Physiology, Yale University, New Haven, CT 06520, USA; Yale Center for Molecular and Systems Metabolism, Yale University, New Haven, CT 06520, USA; Yale Stem Cell Center, Yale University School of Medicine, New Haven, CT 06520, USA.
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73
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Callegari IOM, Rocha GZ, Oliveira AG. Physical exercise, health, and disease treatment: The role of macrophages. Front Physiol 2023; 14:1061353. [PMID: 37179836 PMCID: PMC10166825 DOI: 10.3389/fphys.2023.1061353] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 04/11/2023] [Indexed: 05/15/2023] Open
Abstract
Subclinical inflammation is linked to comorbidities and risk factors, consolidating the diagnosis of chronic non-communicable diseases, such as insulin resistance, atherosclerosis, hepatic steatosis, and some types of cancer. In this context, the role of macrophages is highlighted as a marker of inflammation as well as for the high power of plasticity of these cells. Macrophages can be activated in a wide range between classical or proinflammatory, named M1, and alternative or anti-inflammatory, also known as M2 polarization. All nuances between M1 and M2 macrophages orchestrate the immune response by secreting different sets of chemokines, while M1 cells promote Th1 response, the M2 macrophages recruit Th2 and Tregs lymphocytes. In turn, physical exercise has been a faithful tool in combating the proinflammatory phenotype of macrophages. This review proposes to investigate the cellular and molecular mechanisms in which physical exercise can help control inflammation and infiltration of macrophages within the non-communicable diseases scope. During obesity progress, proinflammatory macrophages predominate in adipose tissue inflammation, which reduces insulin sensitivity until the development of type 2 diabetes, progression of atherosclerosis, and diagnosis of non-alcoholic fatty liver disease. In this case, physical activity restores the balance between the proinflammatory/anti-inflammatory macrophage ratio, reducing the level of meta-inflammation. In the case of cancer, the tumor microenvironment is compatible with a high level of hypoxia, which contributes to the advancement of the disease. However, exercise increases the level of oxygen supply, favoring macrophage polarization in favor of disease regression.
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Affiliation(s)
- Irineu O. M. Callegari
- Department of Physical Education, Bioscience Institute, São Paulo State University (UNESP), São Paulo, Brazil
| | - Guilherme Z. Rocha
- Department of Internal Medicine, State University of Campinas, Campinas, Brazil
| | - Alexandre G. Oliveira
- Department of Physical Education, Bioscience Institute, São Paulo State University (UNESP), São Paulo, Brazil
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Sun Y, Zhang J, Hong J, Zhang Z, Lu P, Gao A, Ni M, Zhang Z, Yang H, Shen J, Lu J, Xue W, Lv Q, Bi Y, Zeng YA, Gu W, Ning G, Wang W, Liu R, Wang J. Human RSPO1 Mutation Represses Beige Adipocyte Thermogenesis and Contributes to Diet-Induced Adiposity. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2207152. [PMID: 36755192 PMCID: PMC10131814 DOI: 10.1002/advs.202207152] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 01/15/2023] [Indexed: 06/18/2023]
Abstract
Recent genetic evidence has linked WNT downstream mutations to fat distribution. However, the roles of WNTs in human obesity remain unclear. Here, the authors screen all Wnt-related paracrine factors in 1994 obese cases and 2161 controls using whole-exome sequencing (WES) and identify that 12 obese patients harbor the same mutations in RSPO1 (p.R219W/Q) predisposing to human obesity. RSPO1 is predominantly expressed in visceral fat, primarily in the fibroblast cluster, and is increased with adiposity. Mice overexpressing human RSPO1 in adipose tissues develop obesity under a high-fat diet (HFD) due to reduced brown/beige fat thermogenesis. In contrast, Rspo1 ablation resists HFD-induced adiposity by increasing thermogenesis. Mechanistically, RSPO1 overexpression or administration significantly inhibits adipocyte mitochondrial respiration and thermogenesis via LGR4-Wnt/β-catenin signaling pathway. Importantly, humanized knockin mice carrying the hotspot mutation (p.R219W) display suppressed thermogenesis and recapitulate the adiposity feature of obese carriers. The mutation disrupts RSPO1's electrostatic interaction with the extracellular matrix, leading to excessive RSPO1 release that activates LGR4-Wnt/β-catenin signaling and attenuates thermogenic capacity in differentiated beige adipocytes. Therefore, these findings identify that gain-of-function mutations and excessive expression of RSPO1, acting as a paracrine Wnt activator, suppress fat thermogenesis and contribute to obesity in humans.
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Affiliation(s)
- Yingkai Sun
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Juan Zhang
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Jie Hong
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Zhongyun Zhang
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Peng Lu
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Aibo Gao
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Mengshan Ni
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Zhiyin Zhang
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Huanjie Yang
- BGI GenomicsBGI‐ShenzhenShenzhen860755P. R. China
| | - Juan Shen
- BGI GenomicsBGI‐ShenzhenShenzhen860755P. R. China
| | - Jieli Lu
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Wenzhi Xue
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Qianqian Lv
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Yufang Bi
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Yi Arial Zeng
- State Key Laboratory of Cell BiologyCAS Center for Excellence in Molecular Cell ScienceInstitute of Biochemistry and Cell BiologyChinese Academy of SciencesUniversity of Chinese Academy of SciencesShanghai200031P. R. China
| | - Weiqiong Gu
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Guang Ning
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Weiqing Wang
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Ruixin Liu
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Jiqiu Wang
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
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Furuta K, Tang X, Islam S, Tapia A, Chen ZB, Ibrahim SH. Endotheliopathy in the metabolic syndrome: Mechanisms and clinical implications. Pharmacol Ther 2023; 244:108372. [PMID: 36894027 PMCID: PMC10084912 DOI: 10.1016/j.pharmthera.2023.108372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 02/25/2023] [Accepted: 02/28/2023] [Indexed: 03/09/2023]
Abstract
The increasing prevalence of the metabolic syndrome (MetS) is a threat to global public health due to its lethal complications. Nonalcoholic fatty liver disease (NAFLD) is the hepatic manifestation of the MetS characterized by hepatic steatosis, which is potentially progressive to the inflammatory and fibrotic nonalcoholic steatohepatitis (NASH). The adipose tissue (AT) is also a major metabolic organ responsible for the regulation of whole-body energy homeostasis, and thereby highly involved in the pathogenesis of the MetS. Recent studies suggest that endothelial cells (ECs) in the liver and AT are not just inert conduits but also crucial mediators in various biological processes via the interaction with other cell types in the microenvironment both under physiological and pathological conditions. Herein, we highlight the current knowledge of the role of the specialized liver sinusoidal endothelial cells (LSECs) in NAFLD pathophysiology. Next, we discuss the processes through which AT EC dysfunction leads to MetS progression, with a focus on inflammation and angiogenesis in the AT as well as on endothelial-to-mesenchymal transition of AT-ECs. In addition, we touch upon the function of ECs residing in other metabolic organs including the pancreatic islet and the gut, the dysregulation of which may also contribute to the MetS. Finally, we highlight potential EC-based therapeutic targets for human MetS, and NASH based on recent achievements in basic and clinical research and discuss how to approach unsolved problems in the field.
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Affiliation(s)
- Kunimaro Furuta
- Division of Gastroenterology & Hepatology, Mayo Clinic, Rochester, MN, USA; Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Xiaofang Tang
- Department of Diabetes Complications & Metabolism, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Shahidul Islam
- Division of Gastroenterology & Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Alonso Tapia
- Department of Diabetes Complications & Metabolism, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Zhen Bouman Chen
- Department of Diabetes Complications & Metabolism, City of Hope Comprehensive Cancer Center, Duarte, CA, USA.
| | - Samar H Ibrahim
- Division of Gastroenterology & Hepatology, Mayo Clinic, Rochester, MN, USA; Division of Pediatric Gastroenterology & Hepatology, Mayo Clinic, Rochester, MN, USA.
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Li J, Jin C, Gustafsson S, Rao A, Wabitsch M, Park CY, Quertermous T, Bielczyk-Maczynska E, Knowles JW. Single-cell transcriptome dataset of human and mouse in vitro adipogenesis models. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.27.534456. [PMID: 37034809 PMCID: PMC10081256 DOI: 10.1101/2023.03.27.534456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Abstract
Adipogenesis is a process in which fat-specific progenitor cells (preadipocytes) differentiate into adipocytes that carry out the key metabolic functions of the adipose tissue, including glucose uptake, energy storage, and adipokine secretion. Several cell lines are routinely used to study the molecular regulation of adipogenesis, in particular the immortalized mouse 3T3-L1 line and the primary human Simpson-Golabi-Behmel syndrome (SGBS) line. However, the cell-to-cell variability of transcriptional changes prior to and during adipogenesis in these models is not well understood. Here, we present a single-cell RNA-Sequencing (scRNA-Seq) dataset collected before and during adipogenic differentiation of 3T3-L1 and SGBS cells. To minimize the effects of experimental variation, we mixed 3T3-L1 and SGBS cells and used computational analysis to demultiplex transcriptomes of mouse and human cells. In both models, adipogenesis results in the appearance of three cell clusters, corresponding to preadipocytes, early and mature adipocytes. These data provide a groundwork for comparative studies on human and mouse adipogenesis, as well as on cell-to-cell variability in gene expression during this process.
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Affiliation(s)
- Jiehan Li
- Division of Cardiovascular Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Stanford Diabetes Research Center, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Stanford Cardiovascular Institute, Stanford University School of Medicine, CA, 94305, USA
- These authors contributed equally: Jiehan Li, Christopher Jin
| | - Christopher Jin
- Division of Cardiovascular Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
- These authors contributed equally: Jiehan Li, Christopher Jin
| | - Stefan Gustafsson
- Clinical Epidemiology Unit, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Abhiram Rao
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA
| | - Martin Wabitsch
- Department of Pediatrics and Adolescent Medicine, Center for Rare Endocrine Diseases, Division of Pediatric Endocrinology and Diabetes, Ulm University Medical Centre, Ulm, 89075, Germany
| | - Chong Y. Park
- Division of Cardiovascular Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Stanford Diabetes Research Center, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Stanford Cardiovascular Institute, Stanford University School of Medicine, CA, 94305, USA
| | - Thomas Quertermous
- Division of Cardiovascular Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Stanford Cardiovascular Institute, Stanford University School of Medicine, CA, 94305, USA
| | - Ewa Bielczyk-Maczynska
- Division of Cardiovascular Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Stanford Diabetes Research Center, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Stanford Cardiovascular Institute, Stanford University School of Medicine, CA, 94305, USA
- These authors contributed equally: Jiehan Li, Christopher Jin
| | - Joshua W. Knowles
- Division of Cardiovascular Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Stanford Diabetes Research Center, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Stanford Cardiovascular Institute, Stanford University School of Medicine, CA, 94305, USA
- Stanford Prevention Research Center, Stanford University School of Medicine, Stanford, CA, 94305, USA
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77
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Han J, Liu X, Tang M, Yang F, Ding Z, Wu G. Abdominal fat and muscle distributions in different stages of colorectal cancer. BMC Cancer 2023; 23:279. [PMID: 36978044 PMCID: PMC10044362 DOI: 10.1186/s12885-023-10736-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 03/13/2023] [Indexed: 03/30/2023] Open
Abstract
BACKGROUND The purpose of this study is to explore the difference of abdominal fat and muscle composition, especially subcutaneous and visceral adipose tissue, in different stages of colorectal cancer (CRC). MATERIALS AND METHODS Patients were divided into 4 groups: healthy controls (patients without colorectal polyp), polyp group (patients with colorectal polyp), cancer group (CRC patients without cachexia), and cachexia group (CRC patients with cachexia). Skeletal muscle (SM), subcutaneous adipose tissue (SAT), visceral adipose tissue (VAT), and intermuscular adipose tissue (IMAT) were assessed at the third lumbar level on computed tomography images obtained within 30 days before colonoscopy or surgery. One-way ANOVA and linear regression were used to analyze the difference of abdominal fat and muscle composition in different stages of CRC. RESULTS A total of 1513 patients were divided into healthy controls, polyp group, cancer group, and cachexia group, respectively. In the development of CRC from normal mucosa to polyp and cancer, the VAT area of the polyp group was significantly higher than that of the healthy controls both in male (156.32 ± 69.71 cm2 vs. 141.97 ± 79.40 cm2, P = 0.014) and female patients (108.69 ± 53.95 cm2 vs. 96.28 ± 46.70 cm2, P = 0.044). However, no significant differences were observed of SAT area between polyp group and healthy controls in both sexes. SAT area decreased significantly in the male cancer group compared with the polyp group (111.16 ± 46.98 cm2 vs. 126.40 ± 43.52 cm2, P = 0.001), while no such change was observed in female patients. When compared with healthy controls, the SM, IMAT, SAT, and VAT areas of cachexia group was significantly decreased by 9.25 cm2 (95% CI: 5.39-13.11 cm2, P < 0.001), 1.93 cm2 (95% CI: 0.54-3.32 cm2, P = 0.001), 28.84 cm2 (95% CI: 17.84-39.83 cm2, P < 0.001), and 31.31 cm2 (95% CI: 18.12-44.51 cm2, P < 0.001) after adjusting for age and gender. CONCLUSION Abdominal fat and muscle composition, especially SAT and VAT, was differently distributed in different stages of CRC. It is necessary to pay attention to the different roles of subcutaneous and visceral adipose tissue in the development of CRC.
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Affiliation(s)
- Jun Han
- Department of General Surgery, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China
- Shanghai Clinical Nutrition Research Center, Shanghai, China
| | - Xinyang Liu
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Min Tang
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Fan Yang
- Department of General Surgery, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China
| | - Zuoyou Ding
- Department of General Surgery, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China
| | - Guohao Wu
- Department of General Surgery, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China.
- Shanghai Clinical Nutrition Research Center, Shanghai, China.
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An integrated single cell and spatial transcriptomic map of human white adipose tissue. Nat Commun 2023; 14:1438. [PMID: 36922516 PMCID: PMC10017705 DOI: 10.1038/s41467-023-36983-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 02/27/2023] [Indexed: 03/18/2023] Open
Abstract
To date, single-cell studies of human white adipose tissue (WAT) have been based on small cohort sizes and no cellular consensus nomenclature exists. Herein, we performed a comprehensive meta-analysis of publicly available and newly generated single-cell, single-nucleus, and spatial transcriptomic results from human subcutaneous, omental, and perivascular WAT. Our high-resolution map is built on data from ten studies and allowed us to robustly identify >60 subpopulations of adipocytes, fibroblast and adipogenic progenitors, vascular, and immune cells. Using these results, we deconvolved spatial and bulk transcriptomic data from nine additional cohorts to provide spatial and clinical dimensions to the map. This identified cell-cell interactions as well as relationships between specific cell subtypes and insulin resistance, dyslipidemia, adipocyte volume, and lipolysis upon long-term weight changes. Altogether, our meta-map provides a rich resource defining the cellular and microarchitectural landscape of human WAT and describes the associations between specific cell types and metabolic states.
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79
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de Visser KE, Joyce JA. The evolving tumor microenvironment: From cancer initiation to metastatic outgrowth. Cancer Cell 2023; 41:374-403. [PMID: 36917948 DOI: 10.1016/j.ccell.2023.02.016] [Citation(s) in RCA: 352] [Impact Index Per Article: 352.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/28/2023] [Accepted: 02/14/2023] [Indexed: 03/14/2023]
Abstract
Cancers represent complex ecosystems comprising tumor cells and a multitude of non-cancerous cells, embedded in an altered extracellular matrix. The tumor microenvironment (TME) includes diverse immune cell types, cancer-associated fibroblasts, endothelial cells, pericytes, and various additional tissue-resident cell types. These host cells were once considered bystanders of tumorigenesis but are now known to play critical roles in the pathogenesis of cancer. The cellular composition and functional state of the TME can differ extensively depending on the organ in which the tumor arises, the intrinsic features of cancer cells, the tumor stage, and patient characteristics. Here, we review the importance of the TME in each stage of cancer progression, from tumor initiation, progression, invasion, and intravasation to metastatic dissemination and outgrowth. Understanding the complex interplay between tumor cell-intrinsic, cell-extrinsic, and systemic mediators of disease progression is critical for the rational development of effective anti-cancer treatments.
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Affiliation(s)
- Karin E de Visser
- Division of Tumor Biology and Immunology, Oncode Institute, The Netherlands Cancer Institute, 1066 CX Amsterdam, the Netherlands; Department of Immunology, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands.
| | - Johanna A Joyce
- Department of Oncology, University of Lausanne, 1011 Lausanne, Switzerland; Ludwig Institute for Cancer Research, 1011 Lausanne, Switzerland; Agora Cancer Center Lausanne, and Swiss Cancer Center Léman, 1011 Lausanne, Switzerland.
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80
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Maniyadath B, Zhang Q, Gupta RK, Mandrup S. Adipose tissue at single-cell resolution. Cell Metab 2023; 35:386-413. [PMID: 36889280 PMCID: PMC10027403 DOI: 10.1016/j.cmet.2023.02.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 01/22/2023] [Accepted: 02/03/2023] [Indexed: 03/09/2023]
Abstract
Adipose tissue exhibits remarkable plasticity with capacity to change in size and cellular composition under physiological and pathophysiological conditions. The emergence of single-cell transcriptomics has rapidly transformed our understanding of the diverse array of cell types and cell states residing in adipose tissues and has provided insight into how transcriptional changes in individual cell types contribute to tissue plasticity. Here, we present a comprehensive overview of the cellular atlas of adipose tissues focusing on the biological insight gained from single-cell and single-nuclei transcriptomics of murine and human adipose tissues. We also offer our perspective on the exciting opportunities for mapping cellular transitions and crosstalk, which have been made possible by single-cell technologies.
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Affiliation(s)
- Babukrishna Maniyadath
- Center for Functional Genomics and Tissue Plasticity, Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense M, Denmark
| | - Qianbin Zhang
- Department of Internal Medicine, Touchstone Diabetes Center, UT Southwestern Medical Center, Dallas, TX, USA
| | - Rana K Gupta
- Department of Internal Medicine, Touchstone Diabetes Center, UT Southwestern Medical Center, Dallas, TX, USA.
| | - Susanne Mandrup
- Center for Functional Genomics and Tissue Plasticity, Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense M, Denmark.
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Abstract
PURPOSE OF REVIEW This review aims to discuss the most recent evidence identifying the presence of distinct white adipocyte subpopulations in white adipose tissue (WAT) and how these may be altered with increasing adiposity and/or metabolic disease. We conceptualize how changes in adipocyte subpopulations may contribute to alterations in WAT function and the development of metabolic diseases such as type 2 diabetes mellitus (T2DM), nonalcoholic fatty liver disease (NAFLD) and cardiovascular disease (CVD). RECENT FINDINGS Studies utilizing novel analytical approaches support the existence of distinct white adipocyte subpopulations in both human and murine WAT. Adipocyte subtypes are potentially functionally distinct and may have different roles in WAT function and obesity-associated metabolic diseases. SUMMARY The exploration of white adipocyte heterogeneity using novel analytical technologies, has unveiled a new layer of complexity in the study of WAT biology. Interrogation of potential functional differences between adipocyte subpopulations and their role in the function of different WAT depots is now needed. Through understanding the mechanisms regulating white adipocyte subtype development and potential pathophysiological consequences of changes in the presence of adipocyte subpopulations, studies could provide novel therapeutic targets for the treatment of T2DM, NAFLD, and CVD.
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Affiliation(s)
- Josh Bilson
- Human Development and Health, Faculty of Medicine, University of Southampton
- National Institute for Health and Care Research Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton National Health Service Foundation Trust
| | - Jaswinder K. Sethi
- Human Development and Health, Faculty of Medicine, University of Southampton
- National Institute for Health and Care Research Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton National Health Service Foundation Trust
- Institute for Life Sciences, University of Southampton, Southampton, United Kingdom
| | - Christopher D. Byrne
- Human Development and Health, Faculty of Medicine, University of Southampton
- National Institute for Health and Care Research Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton National Health Service Foundation Trust
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Feng Z, Chen J, Chen C, Feng L, Wang R, Zhu J, Lou R, Liu J, Ye Y, Lin L. Bioactivity-based molecular networking-guided identification of guttiferone J from Garcinia cambogia as an anti-obesity candidate. Br J Pharmacol 2023; 180:589-608. [PMID: 36321884 DOI: 10.1111/bph.15979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 10/03/2022] [Accepted: 10/20/2022] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND AND PURPOSE Pharmacological intervention to induce browning of white adipose tissue provides a promising anti-obesity therapy. The fruits of Garcinia cambogia (Clusiaceae) have been widely applied to manage body weight; however, the chemical principles remain unclear. The current study aims to discover browning inducers from the fruits of G. cambogia and investigate the underlying mechanisms. EXPERIMENTAL APPROACH The bioactivity-based molecular networking and Oil Red O staining on 3T3-L1 and C3H10T1/2 adipocytes were applied for guided isolation. High-fat diet-induced obese mice were recruited to evaluate the anti-obesity activity. KEY RESULTS The bioactivity-based molecular networking-guided isolation yielded several polycyclic polyprenylated acylphloroglucinols from the fruits of G. cambogia with lipid-lowering effect in adipocytes, including guttiferone J (GOJ), garcinol and 14-deoxygarcinol. As the most potent one, GOJ (10 μM) reduced lipid accumulation by 70% and 76% in 3T3-L1 and C3H10T1/2 adipocytes, respectively. Furthermore, GOJ (2.5-10 μM) increased the expression of the deacetylase sirtuin 3 (SIRT3) and activated it, which, in turn, reduced the acetylation level of PPARγ coactivator-1α to boost mitochondrial biogenesis and promoted uncoupling protein 1 expression to enhance thermogenesis, resulting in browning of adipocytes. In high-fat diet-induced-obese mice, GOJ (10 and 20 mg·kg-1 ·day-1 for 12 weeks) protected against adiposity, hyperlipidaemia, insulin resistance and liver lipotoxicity, through boosting SIRT3-mediated browning of inguinal adipose tissue. CONCLUSION AND IMPLICATIONS GOJ represents a new scaffold of thermogenic inducer, which is responsible for the anti-obesity property of G. cambogia and can be further developed as a candidate for treating obesity and its related disorders.
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Affiliation(s)
- Zheling Feng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Jiali Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Cheng Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Lu Feng
- State Key Laboratory of Drug Research and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Rui Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Jianzhong Zhu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Ruohan Lou
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Jia Liu
- State Key Laboratory of Drug Research and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Yang Ye
- State Key Laboratory of Drug Research and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Ligen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China.,Department of Pharmaceutical Sciences and Technology, Faculty of Health Sciences, University of Macau, Macau, China
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Inoue O, Goten C, Hashimuko D, Yamaguchi K, Takeda Y, Nomura A, Ootsuji H, Takashima S, Iino K, Takemura H, Halurkar M, Lim HW, Hwa V, Sanchez-Gurmaches J, Usui S, Takamura M. Single cell transcriptomics identifies adipose tissue CD271+ progenitors for enhanced angiogenesis in limb ischemia. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.09.527726. [PMID: 36865239 PMCID: PMC9980009 DOI: 10.1101/2023.02.09.527726] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Therapeutic angiogenesis using mesenchymal stem/stromal cell grafts have shown modest and controversial effects in preventing amputation for patients with critical limb ischemia. Through single-cell transcriptomic analysis of human tissues, we identified CD271 + progenitors specifically from subcutaneous adipose tissue (AT) as having the most prominent pro-angiogenic gene profile distinct from other stem cell populations. AT-CD271 + progenitors demonstrated robust in vivo angiogenic capacity, over conventional adipose stromal cell grafts, characterized by long-term engraftment, augmented tissue regeneration, and significant recovery of blood flow in a xenograft model of limb ischemia. Mechanistically, the angiogenic capacity of CD271 + progenitors is dependent on functional CD271 and mTOR signaling. Notably, the number and angiogenic capacity of CD271 + progenitors was strikingly reduced in insulin resistant donors. Our study highlights the identification of AT-CD271 + progenitors with in vivo superior efficacy for limb ischemia. Furthermore, we showcase comprehensive single-cell transcriptomics strategies for identification of suitable grafts for cell therapy. HIGHLIGHTS Adipose tissue stromal cells have a distinct angiogenic gene profile among human cell sources. CD271 + progenitors in adipose tissue have a prominent angiogenic gene profile. CD271 + progenitors show superior therapeutic capacities for limb ischemia. CD271 + progenitors are reduced and functionally impaired in insulin resistant donors. GRAPHICAL ABSTRACT
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English J, Orofino J, Cederquist CT, Paul I, Li H, Auwerx J, Emili A, Belkina A, Cardamone D, Perissi V. GPS2-mediated regulation of the adipocyte secretome modulates adipose tissue remodeling at the onset of diet-induced obesity. Mol Metab 2023; 69:101682. [PMID: 36731652 PMCID: PMC9922684 DOI: 10.1016/j.molmet.2023.101682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 01/22/2023] [Indexed: 02/01/2023] Open
Abstract
OBJECTIVE Dysfunctional, unhealthy expansion of white adipose tissue due to excess dietary intake is a process at the root of obesity and Type 2 Diabetes development. The objective of this study is to contribute to a better understanding of the underlying mechanism(s) regulating the early stages of adipose tissue expansion and adaptation to dietary stress due to an acute, high-fat diet (HFD) challenge, with a focus on the communication between adipocytes and other stromal cells. METHODS We profiled the early response to high-fat diet exposure in wildtype and adipocyte-specific GPS2-KO (GPS2-AKO) mice at the cellular, tissue and organismal level. A multi-pronged approach was employed to disentangle the complex cellular interactions dictating tissue remodeling, via single-cell RNA sequencing and FACS profiling of the stromal fraction, and semi-quantitative proteomics of the adipocyte-derived exosomal cargo after 5 weeks of HFD feeding. RESULTS Our results indicate that loss of GPS2 in mature adipocytes leads to impaired adaptation to the metabolic stress imposed by HFD feeding. GPS2-AKO mice are significantly more inflamed, insulin resistant, and obese, compared to the WT counterparts. At the cellular level, lack of GPS2 in adipocytes impacts upon other stromal populations, with both the eWAT and scWAT depots exhibiting changes in the immune and non-immune compartments that contribute to an increase in inflammatory and anti-adipogenic cell types. Our studies also revealed that adipocyte to stromal cell communication is facilitated by exosomes, and that transcriptional rewiring of the exosomal cargo is crucial for tissue remodeling. Loss of GPS2 results in increased expression of secreted factors promoting a TGFβ-driven fibrotic microenvironment favoring unhealthy tissue remodeling and expansion. CONCLUSIONS Adipocytes serve as an intercellular signaling hub, communicating with the stromal compartment via paracrine signaling. Our study highlights the importance of proper regulation of the 'secretome' released by energetically stressed adipocytes at the onset of obesity. Altered transcriptional regulation of factors secreted via adipocyte-derived exosomes (AdExos), in the absence of GPS2, contributes to the establishment of an anti-adipogenic, pro-fibrotic adipose tissue environment, and to hastened progression towards a metabolically dysfunctional phenotype.
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Affiliation(s)
- Justin English
- Department of Biochemistry, Boston University School of Medicine, Boston, MA, USA; Department of Pharmacology and Experimental Therapeutics, Boston University School of Medicine, Boston, MA, USA.
| | - Joseph Orofino
- Department of Biochemistry, Boston University School of Medicine, Boston, MA, USA.
| | - Carly T. Cederquist
- Department of Biochemistry, Boston University School of Medicine, Boston, MA, USA
| | - Indranil Paul
- Department of Biochemistry, Boston University School of Medicine, Boston, MA, USA; Center for Network Systems Biology, Boston University, Boston, MA, USA.
| | - Hao Li
- Laboratory of Integrative Systems Physiology, Interfaculty Institute of Bioengineering, Ecole Polytechnique Federale de Lausanne, Lausanne, Switzerland.
| | - Johan Auwerx
- Laboratory of Integrative Systems Physiology, Interfaculty Institute of Bioengineering, Ecole Polytechnique Federale de Lausanne, Lausanne, Switzerland.
| | - Andrew Emili
- Department of Biochemistry, Boston University School of Medicine, Boston, MA, USA; Center for Network Systems Biology, Boston University, Boston, MA, USA.
| | - Anna Belkina
- Flow Cytometry Core Facility, Boston University School of Medicine, Boston, MA, USA; Department of Pathology and Laboratory Medicine, Boston University School of Medicine, Boston, MA, USA.
| | - Dafne Cardamone
- Department of Biochemistry, Boston University School of Medicine, Boston, MA, USA.
| | - Valentina Perissi
- Department of Biochemistry, Boston University School of Medicine, Boston, MA, USA; School of Life Science, Northwestern Polytechnical University, Xi'an 710072, China.
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85
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van Weverwijk A, de Visser KE. Mechanisms driving the immunoregulatory function of cancer cells. Nat Rev Cancer 2023; 23:193-215. [PMID: 36717668 DOI: 10.1038/s41568-022-00544-4] [Citation(s) in RCA: 38] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/13/2022] [Indexed: 01/31/2023]
Abstract
Tumours display an astonishing variation in the spatial distribution, composition and activation state of immune cells, which impacts their progression and response to immunotherapy. Shedding light on the mechanisms that govern the diversity and function of immune cells in the tumour microenvironment will pave the way for the development of more tailored immunomodulatory strategies for the benefit of patients with cancer. Cancer cells, by virtue of their paracrine and juxtacrine communication mechanisms, are key contributors to intertumour heterogeneity in immune contextures. In this Review, we discuss how cancer cell-intrinsic features, including (epi)genetic aberrations, signalling pathway deregulation and altered metabolism, play a key role in orchestrating the composition and functional state of the immune landscape, and influence the therapeutic benefit of immunomodulatory strategies. Moreover, we highlight how targeting cancer cell-intrinsic parameters or their downstream immunoregulatory pathways is a viable strategy to manipulate the tumour immune milieu in favour of antitumour immunity.
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Affiliation(s)
- Antoinette van Weverwijk
- Division of Tumour Biology & Immunology, Oncode Institute, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Karin E de Visser
- Division of Tumour Biology & Immunology, Oncode Institute, Netherlands Cancer Institute, Amsterdam, Netherlands.
- Department of Immunology, Leiden University Medical Centre, Leiden, Netherlands.
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86
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Sun K, Li X, Scherer PE. Extracellular Matrix (ECM) and Fibrosis in Adipose Tissue: Overview and Perspectives. Compr Physiol 2023; 13:4387-4407. [PMID: 36715281 PMCID: PMC9957663 DOI: 10.1002/cphy.c220020] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Fibrosis in adipose tissue is a major driver of obesity-related metabolic dysregulation. It is characterized by an overaccumulation of extracellular matrix (ECM) during unhealthy expansion of adipose tissue in response to over nutrition. In obese adipose-depots, hypoxia stimulates multiple pro-fibrotic signaling pathways in different cell populations, thereby inducing the overproduction of the ECM components, including collagens, noncollagenous proteins, and additional enzymatic components of ECM synthesis. As a consequence, local fibrosis develops. The result of fibrosis-induced mechanical stress not only triggers cell necrosis and inflammation locally in adipose tissue but also leads to system-wide lipotoxicity and insulin resistance. A better understanding of the mechanisms underlying the obesity-induced fibrosis will help design therapeutic approaches to reduce or reverse the pathological changes associated with obese adipose tissue. Here, we aim to summarize the major advances in the field, which include newly identified fibrotic factors, cell populations that contribute to the fibrosis in adipose tissue, as well as novel mechanisms underlying the development of fibrosis. We further discuss the potential therapeutic strategies to target fibrosis in adipose tissue for the treatment of obesity-linked metabolic diseases and cancer. © 2023 American Physiological Society. Compr Physiol 13:4387-4407, 2023.
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Affiliation(s)
- Kai Sun
- Center for Metabolic and Degenerative Diseases, Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Xin Li
- Center for Metabolic and Degenerative Diseases, Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Philipp E. Scherer
- Department of Internal Medicine, Touchstone Diabetes Center, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, USA
- Department of Cell Biology, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, USA
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87
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Abstract
Rather than serving as a mere onlooker, adipose tissue is a complex endocrine organ and active participant in disease initiation and progression. Disruptions of biological processes operating within adipose can disturb healthy systemic physiology, the sequelae of which include metabolic disorders such as obesity and type 2 diabetes. A burgeoning interest in the field of adipose research has allowed for the elucidation of regulatory networks underlying both adipose tissue function and dysfunction. Despite this progress, few diseases are treated by targeting maladaptation in the adipose, an oft-overlooked organ. In this review, we elaborate on the distinct subtypes of adipocytes, their developmental origins and secretory roles, and the dynamic interplay at work within the tissue itself. Central to this discussion is the relationship between adipose and disease states, including obesity, cachexia, and infectious diseases, as we aim to leverage our wealth of knowledge for the development of novel and targeted therapeutics.
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Affiliation(s)
- Christopher Auger
- Division of Endocrinology, Diabetes and Metabolism, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA;
| | - Shingo Kajimura
- Division of Endocrinology, Diabetes and Metabolism, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA; .,Howard Hughes Medical Institute, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA;
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88
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Martinez TF, Lyons-Abbott S, Bookout AL, De Souza EV, Donaldson C, Vaughan JM, Lau C, Abramov A, Baquero AF, Baquero K, Friedrich D, Huard J, Davis R, Kim B, Koch T, Mercer AJ, Misquith A, Murray SA, Perry S, Pino LK, Sanford C, Simon A, Zhang Y, Zipp G, Bizarro CV, Shokhirev MN, Whittle AJ, Searle BC, MacCoss MJ, Saghatelian A, Barnes CA. Profiling mouse brown and white adipocytes to identify metabolically relevant small ORFs and functional microproteins. Cell Metab 2023; 35:166-183.e11. [PMID: 36599300 PMCID: PMC9889109 DOI: 10.1016/j.cmet.2022.12.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 09/19/2022] [Accepted: 12/06/2022] [Indexed: 01/05/2023]
Abstract
Microproteins (MPs) are a potentially rich source of uncharacterized metabolic regulators. Here, we use ribosome profiling (Ribo-seq) to curate 3,877 unannotated MP-encoding small ORFs (smORFs) in primary brown, white, and beige mouse adipocytes. Of these, we validated 85 MPs by proteomics, including 33 circulating MPs in mouse plasma. Analyses of MP-encoding mRNAs under different physiological conditions (high-fat diet) revealed that numerous MPs are regulated in adipose tissue in vivo and are co-expressed with established metabolic genes. Furthermore, Ribo-seq provided evidence for the translation of Gm8773, which encodes a secreted MP that is homologous to human and chicken FAM237B. Gm8773 is highly expressed in the arcuate nucleus of the hypothalamus, and intracerebroventricular administration of recombinant mFAM237B showed orexigenic activity in obese mice. Together, these data highlight the value of this adipocyte MP database in identifying MPs with roles in fundamental metabolic and physiological processes such as feeding.
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Affiliation(s)
- Thomas F Martinez
- Department of Pharmaceutical Sciences, Department of Biological Chemistry, Chao Family Comprehensive Cancer Center, University of California, Irvine, Irvine, CA, USA
| | | | - Angie L Bookout
- Novo Nordisk Research Center Seattle, Inc., Seattle, WA, USA
| | - Eduardo V De Souza
- Centro de Pesquisas em Biologia Molecular e Funcional (CPBMF) and Instituto Nacional de Ciência e Tecnologia em Tuberculose (INCT-TB), Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, Brazil; Programa de Pós-Graduação em Biologia Celular e Molecular, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 90616-900, Brazil; Clayton Foundation Laboratories for Peptide Biology, Salk Institute for Biological Studies, La Jolla, CA, USA
| | - Cynthia Donaldson
- Clayton Foundation Laboratories for Peptide Biology, Salk Institute for Biological Studies, La Jolla, CA, USA
| | - Joan M Vaughan
- Clayton Foundation Laboratories for Peptide Biology, Salk Institute for Biological Studies, La Jolla, CA, USA
| | - Calvin Lau
- Clayton Foundation Laboratories for Peptide Biology, Salk Institute for Biological Studies, La Jolla, CA, USA
| | - Ariel Abramov
- Novo Nordisk Research Center Seattle, Inc., Seattle, WA, USA
| | - Arian F Baquero
- Novo Nordisk Research Center Seattle, Inc., Seattle, WA, USA
| | - Karalee Baquero
- Novo Nordisk Research Center Seattle, Inc., Seattle, WA, USA
| | - Dave Friedrich
- Novo Nordisk Research Center Seattle, Inc., Seattle, WA, USA
| | - Justin Huard
- Novo Nordisk Research Center Seattle, Inc., Seattle, WA, USA
| | - Ray Davis
- Novo Nordisk Research Center Seattle, Inc., Seattle, WA, USA
| | - Bong Kim
- Novo Nordisk Research Center Seattle, Inc., Seattle, WA, USA
| | - Ty Koch
- Novo Nordisk Research Center Seattle, Inc., Seattle, WA, USA
| | - Aaron J Mercer
- Novo Nordisk Research Center Seattle, Inc., Seattle, WA, USA
| | - Ayesha Misquith
- Novo Nordisk Research Center Seattle, Inc., Seattle, WA, USA
| | - Sara A Murray
- Novo Nordisk Research Center Seattle, Inc., Seattle, WA, USA
| | - Sakara Perry
- Novo Nordisk Research Center Seattle, Inc., Seattle, WA, USA
| | - Lindsay K Pino
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | | | - Alex Simon
- Novo Nordisk Research Center Seattle, Inc., Seattle, WA, USA
| | - Yu Zhang
- Novo Nordisk Research Center Seattle, Inc., Seattle, WA, USA
| | - Garrett Zipp
- Novo Nordisk Research Center Seattle, Inc., Seattle, WA, USA
| | - Cristiano V Bizarro
- Centro de Pesquisas em Biologia Molecular e Funcional (CPBMF) and Instituto Nacional de Ciência e Tecnologia em Tuberculose (INCT-TB), Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, Brazil; Programa de Pós-Graduação em Biologia Celular e Molecular, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 90616-900, Brazil
| | - Maxim N Shokhirev
- Razavi Newman Integrative Genomics and Bioinformatics Core, Salk Institute for Biological Studies, La Jolla, CA, USA
| | | | - Brian C Searle
- Department of Biomedical Informatics, The Ohio State University, Columbus, OH, USA
| | - Michael J MacCoss
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Alan Saghatelian
- Clayton Foundation Laboratories for Peptide Biology, Salk Institute for Biological Studies, La Jolla, CA, USA.
| | - Christopher A Barnes
- Novo Nordisk Research Center Seattle, Inc., Seattle, WA, USA; Velia Therapeutics, Inc., San Diego, CA, USA.
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89
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Wei Q, Deng Y, Yang Q, Zhan A, Wang L. The markers to delineate different phenotypes of macrophages related to metabolic disorders. Front Immunol 2023; 14:1084636. [PMID: 36814909 PMCID: PMC9940311 DOI: 10.3389/fimmu.2023.1084636] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 01/17/2023] [Indexed: 02/05/2023] Open
Abstract
Macrophages have a wide variety of roles in physiological and pathological conditions, making them promising diagnostic and therapeutic targets in diseases, especially metabolic disorders, which have attracted considerable attention in recent years. Owing to their heterogeneity and polarization, the phenotypes and functions of macrophages related to metabolic disorders are diverse and complicated. In the past three decades, the rapid progress of macrophage research has benefited from the emergence of specific molecular markers to delineate different phenotypes of macrophages and elucidate their role in metabolic disorders. In this review, we analyze the functions and applications of commonly used and novel markers of macrophages related to metabolic disorders, facilitating the better use of these macrophage markers in metabolic disorder research.
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Affiliation(s)
- Quxing Wei
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China.,Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangzhou, China.,Guangdong Traditional Chinese Medicine Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, China.,Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Yanyue Deng
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China.,Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangzhou, China.,Guangdong Traditional Chinese Medicine Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, China.,Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Qianqian Yang
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China.,Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangzhou, China.,Guangdong Traditional Chinese Medicine Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, China.,Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Angyu Zhan
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China.,Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangzhou, China.,Guangdong Traditional Chinese Medicine Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, China.,Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Lexun Wang
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China.,Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangzhou, China.,Guangdong Traditional Chinese Medicine Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, China.,Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
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90
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Cai Z, He B. Adipose tissue aging: An update on mechanisms and therapeutic strategies. Metabolism 2023; 138:155328. [PMID: 36202221 DOI: 10.1016/j.metabol.2022.155328] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/20/2022] [Accepted: 09/29/2022] [Indexed: 11/06/2022]
Abstract
Aging is a complex biological process characterized by a progressive loss of physiological integrity and increased vulnerability to age-related diseases. Adipose tissue plays central roles in the maintenance of whole-body metabolism homeostasis and has recently attracted significant attention as a biological driver of aging and age-related diseases. Here, we review the most recent advances in our understanding of the molecular and cellular mechanisms underlying age-related decline in adipose tissue function. In particular, we focus on the complex inter-relationship between metabolism, immune, and sympathetic nervous system within adipose tissue during aging. Moreover, we discuss the rejuvenation strategies to delay aging and extend lifespan, including senescent cell ablation (senolytics), dietary intervention, physical exercise, and heterochronic parabiosis. Understanding the pathological mechanisms that underlie adipose tissue aging will be critical for the development of new intervention strategies to slow or reverse aging and age-related diseases.
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Affiliation(s)
- Zhaohua Cai
- Heart Center, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai 200030, China
| | - Ben He
- Heart Center, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai 200030, China.
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91
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Tang L, Li T, Xie J, Huo Y. Diversity and heterogeneity in human breast cancer adipose tissue revealed at single-nucleus resolution. Front Immunol 2023; 14:1158027. [PMID: 37153595 PMCID: PMC10160491 DOI: 10.3389/fimmu.2023.1158027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 04/11/2023] [Indexed: 05/09/2023] Open
Abstract
Introduction There is increasing awareness of the role of adipose tissue in breast cancer occurrence and development, but no comparison of adipose adjacent to breast cancer tissues and adipose adjacent to normal breast tissues has been reported. Methods Single-nucleus RNA sequencing (snRNA-seq) was used to analyze cancer-adjacent and normal adipose tissues from the same breast cancer patient to characterize heterogeneity. SnRNA-seq was performed on 54513 cells from six samples of normal breast adipose tissue (N) distant from the tumor and tumor-adjacent adipose tissue (T) from the three patients (all surgically resected). Results and discussion Significant diversity was detected in cell subgroups, differentiation status and, gene expression profiles. Breast cancer induces inflammatory gene profiles in most adipose cell types, such as macrophages, endothelial cells, and adipocytes. Furthermore, breast cancer decreased lipid uptake and the lipolytic phenotype and caused a switch to lipid biosynthesis and an inflammatory state in adipocytes. The in vivo trajectory of adipogenesis revealed distinct transcriptional stages. Breast cancer induced reprogramming across many cell types in breast cancer adipose tissues. Cellular remodeling was investigated by alterations in cell proportions, transcriptional profiles and cell-cell interactions. Breast cancer biology and novel biomarkers and therapy targets may be exposed.
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Affiliation(s)
- Lina Tang
- Advanced Medical Research Center of Zhengzhou University, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
- *Correspondence: Lina Tang, ; Yanping Huo,
| | - Tingting Li
- Department of Cell Biology, Key Laboratory of Cell Biology, National Health Commission of the PRC and Key Laboratory of Medical Cell Biology, Ministry of Education of the PRC, China Medical University, Shenyang, Liaoning, China
| | - Jing Xie
- Department of Breast Surgery, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Yanping Huo
- Department of Breast Surgery, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
- *Correspondence: Lina Tang, ; Yanping Huo,
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92
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Gu S, Gong Z, Liu S, Lu G, Ling Y, Wei Y, Li T, Gu R, Rong Y, Li J, Li H. Global Single-Cell Sequencing Landscape of Adipose Tissue of Different Anatomical Site Origin in Humans. Stem Cells Int 2023; 2023:8282961. [PMID: 37197688 PMCID: PMC10185425 DOI: 10.1155/2023/8282961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/28/2022] [Accepted: 03/20/2023] [Indexed: 05/19/2023] Open
Abstract
Chronic refractory wounds (CRW) are one of the most serious clinical challenges for surgeons to address. Stromal vascular fraction gels (SVFG), including human adipose stem cells (hASCs), have excellent vascular regenerative and tissue repair properties. Here, we combined single-cell RNA sequencing (scRNA-seq) of leg subcutaneous adipose tissue samples with scRNA-seq data from abdominal subcutaneous adipose tissue, leg subcutaneous adipose tissue, and visceral adipose tissue samples from public databases. The results showed specific differences in cellular levels in adipose tissue from different anatomical site sources. We identified cells including CD4+ T cells, hASCs, adipocyte (APC), epithelial (Ep) cells, and preadipocyte. In particular, the dynamics between groups of hASCs, epithelial cells, APCs, and precursor cells in adipose tissue of different anatomical site origins were more significant. Furthermore, our analysis reveals alterations at the cellular level and molecular level, as well as the biological signaling pathways involved in these subpopulations of cells with specific alterations. In particular, certain subpopulations of hASCs have higher cell stemness, which may be related to lipogenic differentiation capacity and may be beneficial in promoting CRW treatment and healing. In general, our study captures a human single-cell transcriptome profile across adipose depots, the cell type identification and analysis of which may help dissect the function and role of cells with specific alterations present in adipose tissue and may provide new ideas and approaches for the treatment of CRW in the clinical setting.
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Affiliation(s)
- Shixing Gu
- Department of Plastic and Aesthetic Surgery, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533022 Guangxi, China
| | - Zhenyu Gong
- Department of Burn, Plastic and Aesthetic Surgery, Affiliated Hospital of Guilin Medical University, Guilin, 541001 Guangxi, China
| | - Shuncai Liu
- Department of Burn, Plastic and Aesthetic Surgery, Affiliated Hospital of Guilin Medical University, Guilin, 541001 Guangxi, China
| | - Guohao Lu
- Department of Emergency, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 53002, China
| | - Yu Ling
- Department of Emergency, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 53002, China
| | - Yanlin Wei
- Department of Emergency, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 53002, China
| | - Ting Li
- Department of Basic Science, YuanDong International Academy of Life Sciences, Hong Kong 999077, China
| | - Ronghe Gu
- Department of Orthopedics, The Fifth Affiliated Hospital of Guangxi Medical University & The First People's Hospital of Nanning, Nanning, 53002 Guangxi, China
| | - Yongxian Rong
- Department of Burn, Plastic and Aesthetic Surgery, The Guiping People's Hospital, Guigping, 537200, China
| | - Junjun Li
- Department of Pediatrics, The People's Hospital of Guangxi Zhuang Autonomous Region & Institute of Hospital Management and Medical Prevention Collaborative Innovation, Guangxi Academy of Medical Sciences, Nanning, 530021 Guangxi, China
| | - Hongmian Li
- Department of Plastic and Reconstructive Surgery, The People's Hospital of Guangxi Zhuang Autonomous Region & Research Center of Medical Sciences, Guangxi Academy of Medical Sciences, Nanning, 530021 Guangxi, China
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93
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Martínez-Colón GJ, Ratnasiri K, Chen H, Jiang S, Zanley E, Rustagi A, Verma R, Chen H, Andrews JR, Mertz KD, Tzankov A, Azagury D, Boyd J, Nolan GP, Schürch CM, Matter MS, Blish CA, McLaughlin TL. SARS-CoV-2 infection drives an inflammatory response in human adipose tissue through infection of adipocytes and macrophages. Sci Transl Med 2022; 14:eabm9151. [PMID: 36137009 PMCID: PMC9529056 DOI: 10.1126/scitranslmed.abm9151] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 09/09/2022] [Indexed: 01/11/2023]
Abstract
Obesity, characterized by chronic low-grade inflammation of the adipose tissue, is associated with adverse coronavirus disease 2019 (COVID-19) outcomes, yet the underlying mechanism is unknown. To explore whether severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection of adipose tissue contributes to pathogenesis, we evaluated COVID-19 autopsy cases and deeply profiled the response of adipose tissue to SARS-CoV-2 infection in vitro. In COVID-19 autopsy cases, we identified SARS-CoV-2 RNA in adipocytes with an associated inflammatory infiltrate. We identified two distinct cellular targets of infection: adipocytes and a subset of inflammatory adipose tissue-resident macrophages. Mature adipocytes were permissive to SARS-CoV-2 infection; although macrophages were abortively infected, SARS-CoV-2 initiated inflammatory responses within both the infected macrophages and bystander preadipocytes. These data suggest that SARS-CoV-2 infection of adipose tissue could contribute to COVID-19 severity through replication of virus within adipocytes and through induction of local and systemic inflammation driven by infection of adipose tissue-resident macrophages.
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Affiliation(s)
| | - Kalani Ratnasiri
- Program in Immunology, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Heping Chen
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Sizun Jiang
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, 02215, USA
| | - Elizabeth Zanley
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Arjun Rustagi
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Renu Verma
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Han Chen
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Jason R. Andrews
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Kirsten D. Mertz
- Institute of Pathology, Cantonal Hospital Baselland, 4410, Liestal, Switzerland
| | - Alexandar Tzankov
- Institute of Medical Genetics and Pathology, University Hospital of Basel, University of Basel, 4056, Basel, Switzerland
| | - Dan Azagury
- Department of Surgery, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Jack Boyd
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Garry P. Nolan
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Christian M. Schürch
- Department of Pathology and Neuropathology, University Hospital and Comprehensive Cancer Center Tübingen, 72070, Tübingen, Germany
| | - Matthias S. Matter
- Institute of Medical Genetics and Pathology, University Hospital of Basel, University of Basel, 4056, Basel, Switzerland
| | - Catherine A. Blish
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Program in Immunology, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Chan Zuckerberg Biohub, San Francisco, CA, 94158, USA
| | - Tracey L. McLaughlin
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
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94
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Garcia JN, Wanjalla CN, Mashayekhi M, Hasty AH. Immune Cell Activation in Obesity and Cardiovascular Disease. Curr Hypertens Rep 2022; 24:627-637. [PMID: 36136214 PMCID: PMC9510332 DOI: 10.1007/s11906-022-01222-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/01/2022] [Indexed: 01/31/2023]
Abstract
PURPOSE OF REVIEW In this review, we focus on immune cell activation in obesity and cardiovascular disease, highlighting specific immune cell microenvironments present in individuals with atherosclerosis, non-ischemic heart disease, hypertension, and infectious diseases. RECENT FINDINGS Obesity and cardiovascular disease are intimately linked and often characterized by inflammation and a cluster of metabolic complications. Compelling evidence from single-cell analysis suggests that obese adipose tissue is inflammatory and infiltrated by almost all immune cell populations. How this inflammatory tissue state contributes to more systemic conditions such as cardiovascular and infectious disease is less well understood. However, current research suggests that changes in the adipose tissue immune environment impact an individual's ability to combat illnesses such as influenza and SARS-CoV2. Obesity is becoming increasingly prevalent globally and is often associated with type 2 diabetes and heart disease. An increased inflammatory state is a major contributor to this association. Widespread chronic inflammation in these disease states is accompanied by an increase in both innate and adaptive immune cell activation. Acutely, these immune cell changes are beneficial as they sustain homeostasis as inflammation increases. However, persistent inflammation subsequently damages tissues and organs throughout the body. Future studies aimed at understanding the unique immune cell populations in each tissue compartment impacted by obesity may hold potential for therapeutic applications.
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Affiliation(s)
- Jamie N Garcia
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, 702 Light Hall, Nashville, TN, 37232, USA
| | - Celestine N Wanjalla
- Division of Infectious Diseases, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Mona Mashayekhi
- Division of Diabetes, Endocrinology and Metabolism, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Alyssa H Hasty
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, 702 Light Hall, Nashville, TN, 37232, USA.
- VA Tennessee Valley Healthcare System, Nashville, TN, USA.
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95
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Zhou X, Zhang J, Lv W, Zhao C, Xia Y, Wu Y, Zhang Q. The pleiotropic roles of adipocyte secretome in remodeling breast cancer. J Exp Clin Cancer Res 2022; 41:203. [PMID: 35701840 PMCID: PMC9199207 DOI: 10.1186/s13046-022-02408-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 05/30/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Breast cancer is the leading female cancer type and the cause of cancer-related mortality worldwide. Adipocytes possess important functions of energy supply, metabolic regulation, and cytokine release, and are also the matrix cell that supports mammary gland tissue. In breast cancer tumor microenvironment (TME), adipocytes are the prominent stromal cells and are implicated in inflammation, metastatic formation, metabolic remodeling, and cancer susceptibility.
Main body
It is well-established that adipocyte secretome is a reservoir engaged in the regulation of tumor cell behavior by secreting a large number of cytokines (IL-6, IL-8, and chemokines), adipokines (leptin, adiponectin, autotaxin, and resistin), lipid metabolites (free fatty acids and β-hydroxybutyrate), and other exosome-encapsulated substances. These released factors influence the evolution and clinical outcome of breast cancer through complex mechanisms. The progression of breast cancer tumors revolves around the tumor-adipose stromal network, which may contribute to breast cancer aggressiveness by increasing the pro-malignant potential of TME and tumor cells themselves. Most importantly, the secretome alterations of adipocytes are regarded as distinctly important targets for breast cancer diagnosis, treatment, and drug resistance.
Conclusion
Therefore, this review will provide a comprehensive description of the specific adipocyte secretome characteristics and interactions within TME cell populations, which will enable us to better tailor strategies for tumor stratification management and treatment.
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96
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Liao ZZ, Ran L, Qi XY, Wang YD, Wang YY, Yang J, Liu JH, Xiao XH. Adipose endothelial cells mastering adipose tissues metabolic fate. Adipocyte 2022; 11:108-119. [PMID: 35067158 PMCID: PMC8786343 DOI: 10.1080/21623945.2022.2028372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Dynamic communication within adipose tissue depends on highly vascularized structural characteristics to maintain systemic metabolic homoeostasis. Recently, it has been noted that adipose endothelial cells (AdECs) act as essential bridges for biological information transmission between adipose-resident cells. Hence, paracrine regulators that mediate crosstalk between AdECs and adipose stromal cells were summarized. We also highlight the importance of AdECs to maintain adipocytes metabolic homoeostasis by regulating insulin sensitivity, lipid turnover and plasticity. The differential regulation of AdECs in adipose plasticity often depends on vascular density and metabolic states. Although choosing pro-angiogenic or anti-angiogenic therapies for obesity is still a matter of debate in clinical settings, the growing numbers of drugs have been confirmed to play an anti-obesity effect by affecting vascularization. Pharmacologic angiogenesis intervention has great potential as therapeutic strategies for obesity.
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Affiliation(s)
- Zhe-Zhen Liao
- The First Affiliated Hospital of University of South China, Department of Metabolism and Endocrinology, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Li Ran
- The First Affiliated Hospital of University of South China, Department of Metabolism and Endocrinology, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Xiao-Yan Qi
- The First Affiliated Hospital of University of South China, Department of Metabolism and Endocrinology, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Ya-Di Wang
- The First Affiliated Hospital of University of South China, Department of Metabolism and Endocrinology, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Yuan-Yuan Wang
- The First Affiliated Hospital of University of South China, Department of Metabolism and Endocrinology, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Jing Yang
- The First Affiliated Hospital of University of South China, Department of Metabolism and Endocrinology, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Jiang-Hua Liu
- The First Affiliated Hospital of University of South China, Department of Metabolism and Endocrinology, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Xin-Hua Xiao
- The First Affiliated Hospital of University of South China, Department of Metabolism and Endocrinology, Hengyang Medical School, University of South China, Hengyang, Hunan, China
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97
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Chen J, Lou R, Zhou F, Li D, Peng C, Lin L. Sirtuins: Key players in obesity-associated adipose tissue remodeling. Front Immunol 2022; 13:1068986. [PMID: 36505468 PMCID: PMC9730827 DOI: 10.3389/fimmu.2022.1068986] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 11/09/2022] [Indexed: 11/25/2022] Open
Abstract
Obesity, a complex disease involving an excessive amount of body fat and a major threat to public health all over the world, is the determining factor of the onset and development of metabolic disorders, including type 2 diabetes, cardiovascular diseases, and non-alcoholic fatty liver disease. Long-term overnutrition results in excessive expansion and dysfunction of adipose tissue, inflammatory responses and over-accumulation of extracellular matrix in adipose tissue, and ectopic lipid deposit in other organs, termed adipose tissue remodeling. The mammalian Sirtuins (SIRT1-7) are a family of conserved NAD+-dependent protein deacetylases. Mounting evidence has disclosed that Sirtuins and their prominent substrates participate in a variety of physiological and pathological processes, including cell cycle regulation, mitochondrial biogenesis and function, glucose and lipid metabolism, insulin action, inflammatory responses, and energy homeostasis. In this review, we provided up-to-date and comprehensive knowledge about the roles of Sirtuins in adipose tissue remodeling, focusing on the fate of adipocytes, lipid mobilization, adipose tissue inflammation and fibrosis, and browning of adipose tissue, and we summarized the clinical trials of Sirtuin activators and inhibitors in treating metabolic diseases, which might shed light on new therapeutic strategies for obesity and its associated metabolic diseases.
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Affiliation(s)
- Jiali Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macao SAR, China
| | - Ruohan Lou
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macao SAR, China
| | - Fei Zhou
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macao SAR, China
| | - Dan Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China,*Correspondence: Cheng Peng, ; Ligen Lin,
| | - Ligen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macao SAR, China,Department of Pharmaceutical Sciences and Technology, Faculty of Health Sciences, University of Macau, Taipa, Macao SAR, China,*Correspondence: Cheng Peng, ; Ligen Lin,
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98
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Nance SA, Muir L, Lumeng C. Adipose tissue macrophages: Regulators of adipose tissue immunometabolism during obesity. Mol Metab 2022; 66:101642. [PMID: 36402403 PMCID: PMC9703629 DOI: 10.1016/j.molmet.2022.101642] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/07/2022] [Accepted: 11/14/2022] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Adipose tissue macrophages (ATMs) are a well characterized regulator of adipose tissue inflammatory tone. Previously defined by the M1 vs M2 classification, we now have a better understanding of ATM diversity that departs from the old paradigm and reports a spectrum of ATM function and phenotypes in both brown and white adipose tissue. SCOPE OF REVIEW This review provides an updated overview of ATM activation and function, ATM diversity in humans and rodents, and novel ATM functions that contribute to metabolic homeostasis and disease. MAJOR CONCLUSIONS While the paradigm that resident ATMs predominate in the lean state and obesity leads to the accumulation of lipid-associated and inflammatory ATMs still broadly remains rigorously supported, the details of this model continue to be refined and single cell data provide new insight into ATM subtypes and states.
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Affiliation(s)
- Sierra A. Nance
- Molecular & Integrative Physiology, University of Michigan Medical School, United States,Department of Pediatrics, University of Michigan Medical School, United States
| | - Lindsey Muir
- Computational Medicine and Bioinformatics, University of Michigan Medical School, United States
| | - Carey Lumeng
- Molecular & Integrative Physiology, University of Michigan Medical School, United States,Department of Pediatrics, University of Michigan Medical School, United States,Corresponding author. 109 Zina Pitcher Place, 2057 BSRB, Ann Arbor, MI 48109, United States.
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99
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Single-cell sequencing unveils key contributions of immune cell populations in cancer-associated adipose wasting. Cell Discov 2022; 8:122. [PMCID: PMC9663454 DOI: 10.1038/s41421-022-00466-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 08/30/2022] [Indexed: 11/16/2022] Open
Abstract
AbstractAdipose tissue loss seen with cancer-associated cachexia (CAC) may functionally drive cachexia development. Using single-cell transcriptomics, we unveil a large-scale comprehensive cellular census of the stromal vascular fraction of white adipose tissues from patients with or without CAC. We report depot- and disease-specific clusters and developmental trajectories of adipose progenitors and immune cells. In adipose tissues with CAC, clear pro-inflammatory transitions were discovered in adipose progenitors, macrophages and CD8+ T cells, with dramatically remodeled cell interactome among these cells, implicating a synergistic effect in promoting tissue inflammation. Remarkably, activated CD8+ T cells contributed specifically to increased IFNG expression in adipose tissues from cachexia patients, and displayed a significant pro-catabolic effect on adipocytes in vitro; whereas macrophage depletion resulted in significantly rescued adipose catabolism and alleviated cachexia in a CAC animal model. Taken together, these results unveil causative mechanisms underlying the chronical inflammation and adipose wasting in CAC.
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100
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Subcutaneous Stromal Cells and Visceral Adipocyte Size Are Determinants of Metabolic Flexibility in Obesity and in Response to Weight Loss Surgery. Cells 2022; 11:cells11223540. [PMID: 36428969 PMCID: PMC9688588 DOI: 10.3390/cells11223540] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/02/2022] [Accepted: 11/05/2022] [Indexed: 11/12/2022] Open
Abstract
Adipose tissue (AT) expansion either through hypertrophy or hyperplasia is determinant in the link between obesity and metabolic alteration. The present study aims to profile the unhealthy subcutaneous and visceral AT (SAT, VAT) expansion in obesity and in the outcomes of bariatric surgery (BS). The repartition of adipocytes according to diameter and the numbers of progenitor subtypes and immune cells of SAT and VAT from 161 obese patients were determined by cell imaging and flow cytometry, respectively. Associations with insulin resistance (IR) prior to BS as well as with the loss of excessive weight (EWL) and IR at 1 and 3 years post-BS were studied; prior to BS, SAT and VAT, unhealthy expansions are characterized by the accumulation of adipogenic progenitors and CD4+ T lymphocytes and by adipocyte hypertrophy and elevated macrophage numbers, respectively. Such SAT stromal profile and VAT adipocyte hypertrophy are associated with adverse BS outcomes. Finally, myofibrogenic progenitors are a common determinant of weight and IR trajectories post-BS; the study suggests that adipogenesis in SAT and adipocyte hypertrophy in VAT are common determinants of metabolic alterations with obesity and of the weight loss and metabolic response to bariatric surgery. The data open up new avenues to better understand and predict individual outcomes in response to changes in energy balance.
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